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Finding the Fourth Proportional to 372,046.72, 557,456.64 and 214,407.68

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Solution

The fourth proportional to 372,046.72, 557,456.64 and 214,407.68 is: 321,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,046.72 : 557,456.64 = 214,407.68 : x
  2. Step 2: Convert to fraction form
    372,046.72/557,456.64 = 214,407.68/x
  3. Step 3: Cross multiply
    372,046.72x = 557,456.64 × 214,407.68
  4. Step 4: Simplify right side
    372,046.72x = 119,522,984,883.00
  5. Step 5: Solve for x
    x = 119,522,984,883.00/372,046.72
  6. Step 6: Final answer
    x = 321,258.00

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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.