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Finding the Fourth Proportional to 625,690.56, 862,994.28 and 410,752.20

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Solution

The fourth proportional to 625,690.56, 862,994.28 and 410,752.20 is: 566,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,690.56 : 862,994.28 = 410,752.20 : x
  2. Step 2: Convert to fraction form
    625,690.56/862,994.28 = 410,752.20/x
  3. Step 3: Cross multiply
    625,690.56x = 862,994.28 × 410,752.20
  4. Step 4: Simplify right side
    625,690.56x = 354,476,799,097.42
  5. Step 5: Solve for x
    x = 354,476,799,097.42/625,690.56
  6. Step 6: Final answer
    x = 566,536.91

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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.