Home / 861,529.95-1,188,891.14-479,548.53

Finding the Fourth Proportional to 861,529.95, 1,188,891.14 and 479,548.53

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Solution

The fourth proportional to 861,529.95, 1,188,891.14 and 479,548.53 is: 661,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,529.95 : 1,188,891.14 = 479,548.53 : x
  2. Step 2: Convert to fraction form
    861,529.95/1,188,891.14 = 479,548.53/x
  3. Step 3: Cross multiply
    861,529.95x = 1,188,891.14 × 479,548.53
  4. Step 4: Simplify right side
    861,529.95x = 570,130,996,119.28
  5. Step 5: Solve for x
    x = 570,130,996,119.28/861,529.95
  6. Step 6: Final answer
    x = 661,765.73

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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.