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Finding the Fourth Proportional to 463,330.40, 694,930.80 and 147,819.20

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Solution

The fourth proportional to 463,330.40, 694,930.80 and 147,819.20 is: 221,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,330.40 : 694,930.80 = 147,819.20 : x
  2. Step 2: Convert to fraction form
    463,330.40/694,930.80 = 147,819.20/x
  3. Step 3: Cross multiply
    463,330.40x = 694,930.80 × 147,819.20
  4. Step 4: Simplify right side
    463,330.40x = 102,724,114,911.36
  5. Step 5: Solve for x
    x = 102,724,114,911.36/463,330.40
  6. Step 6: Final answer
    x = 221,708.13

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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.