Home / 930,626.80-1,395,940.20-611,762.20

Finding the Fourth Proportional to 930,626.80, 1,395,940.20 and 611,762.20

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Solution

The fourth proportional to 930,626.80, 1,395,940.20 and 611,762.20 is: 917,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,626.80 : 1,395,940.20 = 611,762.20 : x
  2. Step 2: Convert to fraction form
    930,626.80/1,395,940.20 = 611,762.20/x
  3. Step 3: Cross multiply
    930,626.80x = 1,395,940.20 × 611,762.20
  4. Step 4: Simplify right side
    930,626.80x = 853,983,447,820.44
  5. Step 5: Solve for x
    x = 853,983,447,820.44/930,626.80
  6. Step 6: Final answer
    x = 917,643.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.