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Finding the Fourth Proportional to 417,264.89, 625,620.78 and 150,990.75

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Solution

The fourth proportional to 417,264.89, 625,620.78 and 150,990.75 is: 226,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,264.89 : 625,620.78 = 150,990.75 : x
  2. Step 2: Convert to fraction form
    417,264.89/625,620.78 = 150,990.75/x
  3. Step 3: Cross multiply
    417,264.89x = 625,620.78 × 150,990.75
  4. Step 4: Simplify right side
    417,264.89x = 94,462,950,787.79
  5. Step 5: Solve for x
    x = 94,462,950,787.79/417,264.89
  6. Step 6: Final answer
    x = 226,386.05

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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.