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Finding the Fourth Proportional to 719,229.68, 992,461.92 and 396,933.92

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Solution

The fourth proportional to 719,229.68, 992,461.92 and 396,933.92 is: 547,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,229.68 : 992,461.92 = 396,933.92 : x
  2. Step 2: Convert to fraction form
    719,229.68/992,461.92 = 396,933.92/x
  3. Step 3: Cross multiply
    719,229.68x = 992,461.92 × 396,933.92
  4. Step 4: Simplify right side
    719,229.68x = 393,941,800,356.33
  5. Step 5: Solve for x
    x = 393,941,800,356.33/719,229.68
  6. Step 6: Final answer
    x = 547,727.40

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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.