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Finding the Fourth Proportional to 358,585.20, 537,877.80 and 225,874.80

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Solution

The fourth proportional to 358,585.20, 537,877.80 and 225,874.80 is: 338,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,585.20 : 537,877.80 = 225,874.80 : x
  2. Step 2: Convert to fraction form
    358,585.20/537,877.80 = 225,874.80/x
  3. Step 3: Cross multiply
    358,585.20x = 537,877.80 × 225,874.80
  4. Step 4: Simplify right side
    358,585.20x = 121,493,040,499.44
  5. Step 5: Solve for x
    x = 121,493,040,499.44/358,585.20
  6. Step 6: Final answer
    x = 338,812.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.