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Finding the Fourth Proportional to 372,098.81, 557,445.86 and 219,841.58

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Solution

The fourth proportional to 372,098.81, 557,445.86 and 219,841.58 is: 329,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,098.81 : 557,445.86 = 219,841.58 : x
  2. Step 2: Convert to fraction form
    372,098.81/557,445.86 = 219,841.58/x
  3. Step 3: Cross multiply
    372,098.81x = 557,445.86 × 219,841.58
  4. Step 4: Simplify right side
    372,098.81x = 122,549,776,610.04
  5. Step 5: Solve for x
    x = 122,549,776,610.04/372,098.81
  6. Step 6: Final answer
    x = 329,347.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.