Home / 690,452.50-1,035,691.71-191,829.46

Finding the Fourth Proportional to 690,452.50, 1,035,691.71 and 191,829.46

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Solution

The fourth proportional to 690,452.50, 1,035,691.71 and 191,829.46 is: 287,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,452.50 : 1,035,691.71 = 191,829.46 : x
  2. Step 2: Convert to fraction form
    690,452.50/1,035,691.71 = 191,829.46/x
  3. Step 3: Cross multiply
    690,452.50x = 1,035,691.71 × 191,829.46
  4. Step 4: Simplify right side
    690,452.50x = 198,676,181,455.78
  5. Step 5: Solve for x
    x = 198,676,181,455.78/690,452.50
  6. Step 6: Final answer
    x = 287,747.79

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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.