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Finding the Fourth Proportional to 417,895.60, 627,112.20 and 231,041.20

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Solution

The fourth proportional to 417,895.60, 627,112.20 and 231,041.20 is: 346,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,895.60 : 627,112.20 = 231,041.20 : x
  2. Step 2: Convert to fraction form
    417,895.60/627,112.20 = 231,041.20/x
  3. Step 3: Cross multiply
    417,895.60x = 627,112.20 × 231,041.20
  4. Step 4: Simplify right side
    417,895.60x = 144,888,755,222.64
  5. Step 5: Solve for x
    x = 144,888,755,222.64/417,895.60
  6. Step 6: Final answer
    x = 346,710.41

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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.