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Finding the Fourth Proportional to 415,042.26, 621,565.38 and 237,009.66

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Solution

The fourth proportional to 415,042.26, 621,565.38 and 237,009.66 is: 354,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,042.26 : 621,565.38 = 237,009.66 : x
  2. Step 2: Convert to fraction form
    415,042.26/621,565.38 = 237,009.66/x
  3. Step 3: Cross multiply
    415,042.26x = 621,565.38 × 237,009.66
  4. Step 4: Simplify right side
    415,042.26x = 147,316,999,381.57
  5. Step 5: Solve for x
    x = 147,316,999,381.57/415,042.26
  6. Step 6: Final answer
    x = 354,944.58

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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.