Home / 381,061.20-525,888.96-219,923.04

Finding the Fourth Proportional to 381,061.20, 525,888.96 and 219,923.04

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Solution

The fourth proportional to 381,061.20, 525,888.96 and 219,923.04 is: 303,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,061.20 : 525,888.96 = 219,923.04 : x
  2. Step 2: Convert to fraction form
    381,061.20/525,888.96 = 219,923.04/x
  3. Step 3: Cross multiply
    381,061.20x = 525,888.96 × 219,923.04
  4. Step 4: Simplify right side
    381,061.20x = 115,655,098,785.64
  5. Step 5: Solve for x
    x = 115,655,098,785.64/381,061.20
  6. Step 6: Final answer
    x = 303,507.94

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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.