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Finding the Fourth Proportional to 627,715.10, 941,572.65 and 416,668.70

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Solution

The fourth proportional to 627,715.10, 941,572.65 and 416,668.70 is: 625,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,715.10 : 941,572.65 = 416,668.70 : x
  2. Step 2: Convert to fraction form
    627,715.10/941,572.65 = 416,668.70/x
  3. Step 3: Cross multiply
    627,715.10x = 941,572.65 × 416,668.70
  4. Step 4: Simplify right side
    627,715.10x = 392,323,852,031.06
  5. Step 5: Solve for x
    x = 392,323,852,031.06/627,715.10
  6. Step 6: Final answer
    x = 625,003.05

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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.