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Finding the Fourth Proportional to 418,481.90, 577,502.61 and 237,228.02

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Solution

The fourth proportional to 418,481.90, 577,502.61 and 237,228.02 is: 327,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,481.90 : 577,502.61 = 237,228.02 : x
  2. Step 2: Convert to fraction form
    418,481.90/577,502.61 = 237,228.02/x
  3. Step 3: Cross multiply
    418,481.90x = 577,502.61 × 237,228.02
  4. Step 4: Simplify right side
    418,481.90x = 136,999,800,715.13
  5. Step 5: Solve for x
    x = 136,999,800,715.13/418,481.90
  6. Step 6: Final answer
    x = 327,373.30

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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.