Home / 658,165.20-986,470.20-279,085.20

Finding the Fourth Proportional to 658,165.20, 986,470.20 and 279,085.20

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Solution

The fourth proportional to 658,165.20, 986,470.20 and 279,085.20 is: 418,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,165.20 : 986,470.20 = 279,085.20 : x
  2. Step 2: Convert to fraction form
    658,165.20/986,470.20 = 279,085.20/x
  3. Step 3: Cross multiply
    658,165.20x = 986,470.20 × 279,085.20
  4. Step 4: Simplify right side
    658,165.20x = 275,309,233,061.04
  5. Step 5: Solve for x
    x = 275,309,233,061.04/658,165.20
  6. Step 6: Final answer
    x = 418,298.07

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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.