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Finding the Fourth Proportional to 664,057.30, 990,906.70 and 592,487.95

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Solution

The fourth proportional to 664,057.30, 990,906.70 and 592,487.95 is: 884,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,057.30 : 990,906.70 = 592,487.95 : x
  2. Step 2: Convert to fraction form
    664,057.30/990,906.70 = 592,487.95/x
  3. Step 3: Cross multiply
    664,057.30x = 990,906.70 × 592,487.95
  4. Step 4: Simplify right side
    664,057.30x = 587,100,280,805.49
  5. Step 5: Solve for x
    x = 587,100,280,805.49/664,057.30
  6. Step 6: Final answer
    x = 884,110.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.