Home / 381,535.05-526,520.42-238,378.13

Finding the Fourth Proportional to 381,535.05, 526,520.42 and 238,378.13

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Solution

The fourth proportional to 381,535.05, 526,520.42 and 238,378.13 is: 328,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,535.05 : 526,520.42 = 238,378.13 : x
  2. Step 2: Convert to fraction form
    381,535.05/526,520.42 = 238,378.13/x
  3. Step 3: Cross multiply
    381,535.05x = 526,520.42 × 238,378.13
  4. Step 4: Simplify right side
    381,535.05x = 125,510,953,126.42
  5. Step 5: Solve for x
    x = 125,510,953,126.42/381,535.05
  6. Step 6: Final answer
    x = 328,963.10

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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.