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Finding the Fourth Proportional to 632,107.20, 948,679.20 and 611,371.20

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Solution

The fourth proportional to 632,107.20, 948,679.20 and 611,371.20 is: 917,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,107.20 : 948,679.20 = 611,371.20 : x
  2. Step 2: Convert to fraction form
    632,107.20/948,679.20 = 611,371.20/x
  3. Step 3: Cross multiply
    632,107.20x = 948,679.20 × 611,371.20
  4. Step 4: Simplify right side
    632,107.20x = 579,995,140,919.04
  5. Step 5: Solve for x
    x = 579,995,140,919.04/632,107.20
  6. Step 6: Final answer
    x = 917,558.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.