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Finding the Fourth Proportional to 866,640.96, 1,300,414.80 and 354,686.13

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Solution

The fourth proportional to 866,640.96, 1,300,414.80 and 354,686.13 is: 532,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,640.96 : 1,300,414.80 = 354,686.13 : x
  2. Step 2: Convert to fraction form
    866,640.96/1,300,414.80 = 354,686.13/x
  3. Step 3: Cross multiply
    866,640.96x = 1,300,414.80 × 354,686.13
  4. Step 4: Simplify right side
    866,640.96x = 461,239,092,806.72
  5. Step 5: Solve for x
    x = 461,239,092,806.72/866,640.96
  6. Step 6: Final answer
    x = 532,214.74

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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.