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Finding the Fourth Proportional to 372,788.49, 514,462.68 and 211,658.54

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Solution

The fourth proportional to 372,788.49, 514,462.68 and 211,658.54 is: 292,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,788.49 : 514,462.68 = 211,658.54 : x
  2. Step 2: Convert to fraction form
    372,788.49/514,462.68 = 211,658.54/x
  3. Step 3: Cross multiply
    372,788.49x = 514,462.68 × 211,658.54
  4. Step 4: Simplify right side
    372,788.49x = 108,890,417,160.97
  5. Step 5: Solve for x
    x = 108,890,417,160.97/372,788.49
  6. Step 6: Final answer
    x = 292,097.05

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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.