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Finding the Fourth Proportional to 592,207.31, 817,243.71 and 320,275.53

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Solution

The fourth proportional to 592,207.31, 817,243.71 and 320,275.53 is: 441,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,207.31 : 817,243.71 = 320,275.53 : x
  2. Step 2: Convert to fraction form
    592,207.31/817,243.71 = 320,275.53/x
  3. Step 3: Cross multiply
    592,207.31x = 817,243.71 × 320,275.53
  4. Step 4: Simplify right side
    592,207.31x = 261,743,162,359.42
  5. Step 5: Solve for x
    x = 261,743,162,359.42/592,207.31
  6. Step 6: Final answer
    x = 441,978.95

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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.