Home / 289,475.12-399,612.48-194,044.16

Finding the Fourth Proportional to 289,475.12, 399,612.48 and 194,044.16

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Solution

The fourth proportional to 289,475.12, 399,612.48 and 194,044.16 is: 267,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,475.12 : 399,612.48 = 194,044.16 : x
  2. Step 2: Convert to fraction form
    289,475.12/399,612.48 = 194,044.16/x
  3. Step 3: Cross multiply
    289,475.12x = 399,612.48 × 194,044.16
  4. Step 4: Simplify right side
    289,475.12x = 77,542,468,007.12
  5. Step 5: Solve for x
    x = 77,542,468,007.12/289,475.12
  6. Step 6: Final answer
    x = 267,872.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.