Home / 716,665.60-1,074,998.40-639,251.20

Finding the Fourth Proportional to 716,665.60, 1,074,998.40 and 639,251.20

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Solution

The fourth proportional to 716,665.60, 1,074,998.40 and 639,251.20 is: 958,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,665.60 : 1,074,998.40 = 639,251.20 : x
  2. Step 2: Convert to fraction form
    716,665.60/1,074,998.40 = 639,251.20/x
  3. Step 3: Cross multiply
    716,665.60x = 1,074,998.40 × 639,251.20
  4. Step 4: Simplify right side
    716,665.60x = 687,194,017,198.08
  5. Step 5: Solve for x
    x = 687,194,017,198.08/716,665.60
  6. Step 6: Final answer
    x = 958,876.80

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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.