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Finding the Fourth Proportional to 558,372.82, 838,042.80 and 292,319.42

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Solution

The fourth proportional to 558,372.82, 838,042.80 and 292,319.42 is: 438,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,372.82 : 838,042.80 = 292,319.42 : x
  2. Step 2: Convert to fraction form
    558,372.82/838,042.80 = 292,319.42/x
  3. Step 3: Cross multiply
    558,372.82x = 838,042.80 × 292,319.42
  4. Step 4: Simplify right side
    558,372.82x = 244,976,185,231.18
  5. Step 5: Solve for x
    x = 244,976,185,231.18/558,372.82
  6. Step 6: Final answer
    x = 438,732.29

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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.