Home / 399,079.20-598,728.12-199,158.24

Finding the Fourth Proportional to 399,079.20, 598,728.12 and 199,158.24

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Solution

The fourth proportional to 399,079.20, 598,728.12 and 199,158.24 is: 298,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,079.20 : 598,728.12 = 199,158.24 : x
  2. Step 2: Convert to fraction form
    399,079.20/598,728.12 = 199,158.24/x
  3. Step 3: Cross multiply
    399,079.20x = 598,728.12 × 199,158.24
  4. Step 4: Simplify right side
    399,079.20x = 119,241,638,617.71
  5. Step 5: Solve for x
    x = 119,241,638,617.71/399,079.20
  6. Step 6: Final answer
    x = 298,791.92

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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.