Home / 1,321,152.76-1,823,200.14-717,540.76

Finding the Fourth Proportional to 1,321,152.76, 1,823,200.14 and 717,540.76

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Solution

The fourth proportional to 1,321,152.76, 1,823,200.14 and 717,540.76 is: 990,211.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,152.76 : 1,823,200.14 = 717,540.76 : x
  2. Step 2: Convert to fraction form
    1,321,152.76/1,823,200.14 = 717,540.76/x
  3. Step 3: Cross multiply
    1,321,152.76x = 1,823,200.14 × 717,540.76
  4. Step 4: Simplify right side
    1,321,152.76x = 1,308,220,414,087.71
  5. Step 5: Solve for x
    x = 1,308,220,414,087.71/1,321,152.76
  6. Step 6: Final answer
    x = 990,211.32

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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.