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Finding the Fourth Proportional to 417,564.39, 626,346.28 and 239,958.12

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Solution

The fourth proportional to 417,564.39, 626,346.28 and 239,958.12 is: 359,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,564.39 : 626,346.28 = 239,958.12 : x
  2. Step 2: Convert to fraction form
    417,564.39/626,346.28 = 239,958.12/x
  3. Step 3: Cross multiply
    417,564.39x = 626,346.28 × 239,958.12
  4. Step 4: Simplify right side
    417,564.39x = 150,296,875,217.90
  5. Step 5: Solve for x
    x = 150,296,875,217.90/417,564.39
  6. Step 6: Final answer
    x = 359,937.00

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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.