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Finding the Fourth Proportional to 627,881.01, 866,469.78 and 341,401.20

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Solution

The fourth proportional to 627,881.01, 866,469.78 and 341,401.20 is: 471,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,881.01 : 866,469.78 = 341,401.20 : x
  2. Step 2: Convert to fraction form
    627,881.01/866,469.78 = 341,401.20/x
  3. Step 3: Cross multiply
    627,881.01x = 866,469.78 × 341,401.20
  4. Step 4: Simplify right side
    627,881.01x = 295,813,822,655.74
  5. Step 5: Solve for x
    x = 295,813,822,655.74/627,881.01
  6. Step 6: Final answer
    x = 471,130.39

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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.