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Finding the Fourth Proportional to 415,012.58, 572,732.73 and 231,267.72

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Solution

The fourth proportional to 415,012.58, 572,732.73 and 231,267.72 is: 319,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,012.58 : 572,732.73 = 231,267.72 : x
  2. Step 2: Convert to fraction form
    415,012.58/572,732.73 = 231,267.72/x
  3. Step 3: Cross multiply
    415,012.58x = 572,732.73 × 231,267.72
  4. Step 4: Simplify right side
    415,012.58x = 132,454,592,636.48
  5. Step 5: Solve for x
    x = 132,454,592,636.48/415,012.58
  6. Step 6: Final answer
    x = 319,158.02

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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.