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Finding the Fourth Proportional to 593,259.48, 818,691.57 and 321,320.61

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Solution

The fourth proportional to 593,259.48, 818,691.57 and 321,320.61 is: 443,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,259.48 : 818,691.57 = 321,320.61 : x
  2. Step 2: Convert to fraction form
    593,259.48/818,691.57 = 321,320.61/x
  3. Step 3: Cross multiply
    593,259.48x = 818,691.57 × 321,320.61
  4. Step 4: Simplify right side
    593,259.48x = 263,062,474,674.26
  5. Step 5: Solve for x
    x = 263,062,474,674.26/593,259.48
  6. Step 6: Final answer
    x = 443,418.91

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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.