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Finding the Fourth Proportional to 627,908.30, 866,495.32 and 356,001.44

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Solution

The fourth proportional to 627,908.30, 866,495.32 and 356,001.44 is: 491,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,908.30 : 866,495.32 = 356,001.44 : x
  2. Step 2: Convert to fraction form
    627,908.30/866,495.32 = 356,001.44/x
  3. Step 3: Cross multiply
    627,908.30x = 866,495.32 × 356,001.44
  4. Step 4: Simplify right side
    627,908.30x = 308,473,581,673.26
  5. Step 5: Solve for x
    x = 308,473,581,673.26/627,908.30
  6. Step 6: Final answer
    x = 491,271.71

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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.