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Finding the Fourth Proportional to 627,781.58, 866,299.76 and 352,124.27

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Solution

The fourth proportional to 627,781.58, 866,299.76 and 352,124.27 is: 485,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,781.58 : 866,299.76 = 352,124.27 : x
  2. Step 2: Convert to fraction form
    627,781.58/866,299.76 = 352,124.27/x
  3. Step 3: Cross multiply
    627,781.58x = 866,299.76 × 352,124.27
  4. Step 4: Simplify right side
    627,781.58x = 305,045,166,259.68
  5. Step 5: Solve for x
    x = 305,045,166,259.68/627,781.58
  6. Step 6: Final answer
    x = 485,909.72

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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.