Home / 439,939.40-659,844.30-124,428.20

Finding the Fourth Proportional to 439,939.40, 659,844.30 and 124,428.20

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Solution

The fourth proportional to 439,939.40, 659,844.30 and 124,428.20 is: 186,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,939.40 : 659,844.30 = 124,428.20 : x
  2. Step 2: Convert to fraction form
    439,939.40/659,844.30 = 124,428.20/x
  3. Step 3: Cross multiply
    439,939.40x = 659,844.30 × 124,428.20
  4. Step 4: Simplify right side
    439,939.40x = 82,103,238,529.26
  5. Step 5: Solve for x
    x = 82,103,238,529.26/439,939.40
  6. Step 6: Final answer
    x = 186,623.97

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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.