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Finding the Fourth Proportional to 418,434.52, 577,420.68 and 237,135.88

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Solution

The fourth proportional to 418,434.52, 577,420.68 and 237,135.88 is: 327,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,434.52 : 577,420.68 = 237,135.88 : x
  2. Step 2: Convert to fraction form
    418,434.52/577,420.68 = 237,135.88/x
  3. Step 3: Cross multiply
    418,434.52x = 577,420.68 × 237,135.88
  4. Step 4: Simplify right side
    418,434.52x = 136,927,161,082.00
  5. Step 5: Solve for x
    x = 136,927,161,082.00/418,434.52
  6. Step 6: Final answer
    x = 327,236.77

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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.