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Finding the Fourth Proportional to 662,141.57, 913,692.15 and 371,686.64

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Solution

The fourth proportional to 662,141.57, 913,692.15 and 371,686.64 is: 512,892.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,141.57 : 913,692.15 = 371,686.64 : x
  2. Step 2: Convert to fraction form
    662,141.57/913,692.15 = 371,686.64/x
  3. Step 3: Cross multiply
    662,141.57x = 913,692.15 × 371,686.64
  4. Step 4: Simplify right side
    662,141.57x = 339,607,165,227.88
  5. Step 5: Solve for x
    x = 339,607,165,227.88/662,141.57
  6. Step 6: Final answer
    x = 512,892.08

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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.