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Finding the Fourth Proportional to 627,721.08, 866,244.88 and 341,248.38

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Solution

The fourth proportional to 627,721.08, 866,244.88 and 341,248.38 is: 470,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,721.08 : 866,244.88 = 341,248.38 : x
  2. Step 2: Convert to fraction form
    627,721.08/866,244.88 = 341,248.38/x
  3. Step 3: Cross multiply
    627,721.08x = 866,244.88 × 341,248.38
  4. Step 4: Simplify right side
    627,721.08x = 295,604,661,983.29
  5. Step 5: Solve for x
    x = 295,604,661,983.29/627,721.08
  6. Step 6: Final answer
    x = 470,917.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.