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Finding the Fourth Proportional to 468,807.40, 702,890.97 and 225,520.12

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Solution

The fourth proportional to 468,807.40, 702,890.97 and 225,520.12 is: 338,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,807.40 : 702,890.97 = 225,520.12 : x
  2. Step 2: Convert to fraction form
    468,807.40/702,890.97 = 225,520.12/x
  3. Step 3: Cross multiply
    468,807.40x = 702,890.97 × 225,520.12
  4. Step 4: Simplify right side
    468,807.40x = 158,516,055,901.32
  5. Step 5: Solve for x
    x = 158,516,055,901.32/468,807.40
  6. Step 6: Final answer
    x = 338,126.18

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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.