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Finding the Fourth Proportional to 368,527.52, 550,099.72 and 316,272.80

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Solution

The fourth proportional to 368,527.52, 550,099.72 and 316,272.80 is: 472,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,527.52 : 550,099.72 = 316,272.80 : x
  2. Step 2: Convert to fraction form
    368,527.52/550,099.72 = 316,272.80/x
  3. Step 3: Cross multiply
    368,527.52x = 550,099.72 × 316,272.80
  4. Step 4: Simplify right side
    368,527.52x = 173,981,578,723.62
  5. Step 5: Solve for x
    x = 173,981,578,723.62/368,527.52
  6. Step 6: Final answer
    x = 472,099.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.