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Finding the Fourth Proportional to 566,157, 781,318.17 and 324,486.21

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Solution

The fourth proportional to 566,157, 781,318.17 and 324,486.21 is: 447,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,157 : 781,318.17 = 324,486.21 : x
  2. Step 2: Convert to fraction form
    566,157/781,318.17 = 324,486.21/x
  3. Step 3: Cross multiply
    566,157x = 781,318.17 × 324,486.21
  4. Step 4: Simplify right side
    566,157x = 253,526,971,787.44
  5. Step 5: Solve for x
    x = 253,526,971,787.44/566,157
  6. Step 6: Final answer
    x = 447,803.30

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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.