Home / 439,816.20-659,637.90-144,328.20

Finding the Fourth Proportional to 439,816.20, 659,637.90 and 144,328.20

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Solution

The fourth proportional to 439,816.20, 659,637.90 and 144,328.20 is: 216,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,816.20 : 659,637.90 = 144,328.20 : x
  2. Step 2: Convert to fraction form
    439,816.20/659,637.90 = 144,328.20/x
  3. Step 3: Cross multiply
    439,816.20x = 659,637.90 × 144,328.20
  4. Step 4: Simplify right side
    439,816.20x = 95,204,350,758.78
  5. Step 5: Solve for x
    x = 95,204,350,758.78/439,816.20
  6. Step 6: Final answer
    x = 216,463.95

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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.