Home / 417,912.75-576,719.60-239,064.75

Finding the Fourth Proportional to 417,912.75, 576,719.60 and 239,064.75

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Solution

The fourth proportional to 417,912.75, 576,719.60 and 239,064.75 is: 329,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,912.75 : 576,719.60 = 239,064.75 : x
  2. Step 2: Convert to fraction form
    417,912.75/576,719.60 = 239,064.75/x
  3. Step 3: Cross multiply
    417,912.75x = 576,719.60 × 239,064.75
  4. Step 4: Simplify right side
    417,912.75x = 137,873,325,798.78
  5. Step 5: Solve for x
    x = 137,873,325,798.78/417,912.75
  6. Step 6: Final answer
    x = 329,909.36

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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.