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Finding the Fourth Proportional to 375,685.43, 518,499.06 and 232,491.61

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Solution

The fourth proportional to 375,685.43, 518,499.06 and 232,491.61 is: 320,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,685.43 : 518,499.06 = 232,491.61 : x
  2. Step 2: Convert to fraction form
    375,685.43/518,499.06 = 232,491.61/x
  3. Step 3: Cross multiply
    375,685.43x = 518,499.06 × 232,491.61
  4. Step 4: Simplify right side
    375,685.43x = 120,546,678,650.39
  5. Step 5: Solve for x
    x = 120,546,678,650.39/375,685.43
  6. Step 6: Final answer
    x = 320,871.32

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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.