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Finding the Fourth Proportional to 972,685.52, 1,459,542 and 690,201.44

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Solution

The fourth proportional to 972,685.52, 1,459,542 and 690,201.44 is: 1,035,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,685.52 : 1,459,542 = 690,201.44 : x
  2. Step 2: Convert to fraction form
    972,685.52/1,459,542 = 690,201.44/x
  3. Step 3: Cross multiply
    972,685.52x = 1,459,542 × 690,201.44
  4. Step 4: Simplify right side
    972,685.52x = 1,007,377,990,140.48
  5. Step 5: Solve for x
    x = 1,007,377,990,140.48/972,685.52
  6. Step 6: Final answer
    x = 1,035,666.69

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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.