Home / 840,706.17-1,160,200.16-478,182.27

Finding the Fourth Proportional to 840,706.17, 1,160,200.16 and 478,182.27

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Solution

The fourth proportional to 840,706.17, 1,160,200.16 and 478,182.27 is: 659,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,706.17 : 1,160,200.16 = 478,182.27 : x
  2. Step 2: Convert to fraction form
    840,706.17/1,160,200.16 = 478,182.27/x
  3. Step 3: Cross multiply
    840,706.17x = 1,160,200.16 × 478,182.27
  4. Step 4: Simplify right side
    840,706.17x = 554,787,143,772.25
  5. Step 5: Solve for x
    x = 554,787,143,772.25/840,706.17
  6. Step 6: Final answer
    x = 659,906.12

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Double scale
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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.