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Finding the Fourth Proportional to 662,171.13, 913,517.46 and 416,721.11

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Solution

The fourth proportional to 662,171.13, 913,517.46 and 416,721.11 is: 574,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,171.13 : 913,517.46 = 416,721.11 : x
  2. Step 2: Convert to fraction form
    662,171.13/913,517.46 = 416,721.11/x
  3. Step 3: Cross multiply
    662,171.13x = 913,517.46 × 416,721.11
  4. Step 4: Simplify right side
    662,171.13x = 380,682,005,367.99
  5. Step 5: Solve for x
    x = 380,682,005,367.99/662,171.13
  6. Step 6: Final answer
    x = 574,899.73

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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.