Home / 438,022.46-656,518.57-197,856.05

Finding the Fourth Proportional to 438,022.46, 656,518.57 and 197,856.05

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Solution

The fourth proportional to 438,022.46, 656,518.57 and 197,856.05 is: 296,551.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,022.46 : 656,518.57 = 197,856.05 : x
  2. Step 2: Convert to fraction form
    438,022.46/656,518.57 = 197,856.05/x
  3. Step 3: Cross multiply
    438,022.46x = 656,518.57 × 197,856.05
  4. Step 4: Simplify right side
    438,022.46x = 129,896,167,234.62
  5. Step 5: Solve for x
    x = 129,896,167,234.62/438,022.46
  6. Step 6: Final answer
    x = 296,551.38

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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.