Home / 1,223,456,120.27-1,688,074,928.75-714,530,220.26

Finding the Fourth Proportional to 1,223,456,120.27, 1,688,074,928.75 and 714,530,220.26

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Solution

The fourth proportional to 1,223,456,120.27, 1,688,074,928.75 and 714,530,220.26 is: 985,879,698.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,456,120.27 : 1,688,074,928.75 = 714,530,220.26 : x
  2. Step 2: Convert to fraction form
    1,223,456,120.27/1,688,074,928.75 = 714,530,220.26/x
  3. Step 3: Cross multiply
    1,223,456,120.27x = 1,688,074,928.75 × 714,530,220.26
  4. Step 4: Simplify right side
    1,223,456,120.27x = 1,206,180,550,643,108,096
  5. Step 5: Solve for x
    x = 1,206,180,550,643,108,096/1,223,456,120.27
  6. Step 6: Final answer
    x = 985,879,698.23

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.