Home / 426,588.05-639,882.07-127,060.84

Finding the Fourth Proportional to 426,588.05, 639,882.07 and 127,060.84

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Solution

The fourth proportional to 426,588.05, 639,882.07 and 127,060.84 is: 190,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,588.05 : 639,882.07 = 127,060.84 : x
  2. Step 2: Convert to fraction form
    426,588.05/639,882.07 = 127,060.84/x
  3. Step 3: Cross multiply
    426,588.05x = 639,882.07 × 127,060.84
  4. Step 4: Simplify right side
    426,588.05x = 81,303,950,115.73
  5. Step 5: Solve for x
    x = 81,303,950,115.73/426,588.05
  6. Step 6: Final answer
    x = 190,591.25

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Similar ratio
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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.