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Finding the Fourth Proportional to 418,398.75, 577,318.86 and 237,073.23

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Solution

The fourth proportional to 418,398.75, 577,318.86 and 237,073.23 is: 327,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,398.75 : 577,318.86 = 237,073.23 : x
  2. Step 2: Convert to fraction form
    418,398.75/577,318.86 = 237,073.23/x
  3. Step 3: Cross multiply
    418,398.75x = 577,318.86 × 237,073.23
  4. Step 4: Simplify right side
    418,398.75x = 136,866,846,880.12
  5. Step 5: Solve for x
    x = 136,866,846,880.12/418,398.75
  6. Step 6: Final answer
    x = 327,120.59

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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.