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Finding the Fourth Proportional to 704,800.44, 972,624.24 and 398,871.27

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Solution

The fourth proportional to 704,800.44, 972,624.24 and 398,871.27 is: 550,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,800.44 : 972,624.24 = 398,871.27 : x
  2. Step 2: Convert to fraction form
    704,800.44/972,624.24 = 398,871.27/x
  3. Step 3: Cross multiply
    704,800.44x = 972,624.24 × 398,871.27
  4. Step 4: Simplify right side
    704,800.44x = 387,951,865,841.59
  5. Step 5: Solve for x
    x = 387,951,865,841.59/704,800.44
  6. Step 6: Final answer
    x = 550,442.14

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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.