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Finding the Fourth Proportional to 627,934.60, 866,555.46 and 341,457.16

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Solution

The fourth proportional to 627,934.60, 866,555.46 and 341,457.16 is: 471,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,934.60 : 866,555.46 = 341,457.16 : x
  2. Step 2: Convert to fraction form
    627,934.60/866,555.46 = 341,457.16/x
  3. Step 3: Cross multiply
    627,934.60x = 866,555.46 × 341,457.16
  4. Step 4: Simplify right side
    627,934.60x = 295,891,566,354.09
  5. Step 5: Solve for x
    x = 295,891,566,354.09/627,934.60
  6. Step 6: Final answer
    x = 471,213.99

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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.