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Finding the Fourth Proportional to 627,862.89, 866,426.90 and 341,383.21

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Solution

The fourth proportional to 627,862.89, 866,426.90 and 341,383.21 is: 471,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,862.89 : 866,426.90 = 341,383.21 : x
  2. Step 2: Convert to fraction form
    627,862.89/866,426.90 = 341,383.21/x
  3. Step 3: Cross multiply
    627,862.89x = 866,426.90 × 341,383.21
  4. Step 4: Simplify right side
    627,862.89x = 295,783,596,352.35
  5. Step 5: Solve for x
    x = 295,783,596,352.35/627,862.89
  6. Step 6: Final answer
    x = 471,095.84

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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.