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Finding the Fourth Proportional to 627,871.60, 866,464.68 and 341,392.80

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Solution

The fourth proportional to 627,871.60, 866,464.68 and 341,392.80 is: 471,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,871.60 : 866,464.68 = 341,392.80 : x
  2. Step 2: Convert to fraction form
    627,871.60/866,464.68 = 341,392.80/x
  3. Step 3: Cross multiply
    627,871.60x = 866,464.68 × 341,392.80
  4. Step 4: Simplify right side
    627,871.60x = 295,804,803,206.30
  5. Step 5: Solve for x
    x = 295,804,803,206.30/627,871.60
  6. Step 6: Final answer
    x = 471,123.08

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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.