Home / 619,049.18-853,924.92-389,242.16

Finding the Fourth Proportional to 619,049.18, 853,924.92 and 389,242.16

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Solution

The fourth proportional to 619,049.18, 853,924.92 and 389,242.16 is: 536,925.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,049.18 : 853,924.92 = 389,242.16 : x
  2. Step 2: Convert to fraction form
    619,049.18/853,924.92 = 389,242.16/x
  3. Step 3: Cross multiply
    619,049.18x = 853,924.92 × 389,242.16
  4. Step 4: Simplify right side
    619,049.18x = 332,383,580,338.63
  5. Step 5: Solve for x
    x = 332,383,580,338.63/619,049.18
  6. Step 6: Final answer
    x = 536,925.97

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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.