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Finding the Fourth Proportional to 462,562.38, 638,327.79 and 261,354.06

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Solution

The fourth proportional to 462,562.38, 638,327.79 and 261,354.06 is: 360,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,562.38 : 638,327.79 = 261,354.06 : x
  2. Step 2: Convert to fraction form
    462,562.38/638,327.79 = 261,354.06/x
  3. Step 3: Cross multiply
    462,562.38x = 638,327.79 × 261,354.06
  4. Step 4: Simplify right side
    462,562.38x = 166,829,559,527.33
  5. Step 5: Solve for x
    x = 166,829,559,527.33/462,562.38
  6. Step 6: Final answer
    x = 360,663.92

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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.