Home / 438,023.46-656,520.07-197,857.05

Finding the Fourth Proportional to 438,023.46, 656,520.07 and 197,857.05

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Solution

The fourth proportional to 438,023.46, 656,520.07 and 197,857.05 is: 296,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,023.46 : 656,520.07 = 197,857.05 : x
  2. Step 2: Convert to fraction form
    438,023.46/656,520.07 = 197,857.05/x
  3. Step 3: Cross multiply
    438,023.46x = 656,520.07 × 197,857.05
  4. Step 4: Simplify right side
    438,023.46x = 129,897,124,315.99
  5. Step 5: Solve for x
    x = 129,897,124,315.99/438,023.46
  6. Step 6: Final answer
    x = 296,552.89

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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.