Home / 782,069.68-1,079,778.60-527,327.92

Finding the Fourth Proportional to 782,069.68, 1,079,778.60 and 527,327.92

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Solution

The fourth proportional to 782,069.68, 1,079,778.60 and 527,327.92 is: 728,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,069.68 : 1,079,778.60 = 527,327.92 : x
  2. Step 2: Convert to fraction form
    782,069.68/1,079,778.60 = 527,327.92/x
  3. Step 3: Cross multiply
    782,069.68x = 1,079,778.60 × 527,327.92
  4. Step 4: Simplify right side
    782,069.68x = 569,397,403,198.51
  5. Step 5: Solve for x
    x = 569,397,403,198.51/782,069.68
  6. Step 6: Final answer
    x = 728,064.80

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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.