Home / 663,132.78-994,993.20-347,514.66

Finding the Fourth Proportional to 663,132.78, 994,993.20 and 347,514.66

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Solution

The fourth proportional to 663,132.78, 994,993.20 and 347,514.66 is: 521,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,132.78 : 994,993.20 = 347,514.66 : x
  2. Step 2: Convert to fraction form
    663,132.78/994,993.20 = 347,514.66/x
  3. Step 3: Cross multiply
    663,132.78x = 994,993.20 × 347,514.66
  4. Step 4: Simplify right side
    663,132.78x = 345,774,723,600.31
  5. Step 5: Solve for x
    x = 345,774,723,600.31/663,132.78
  6. Step 6: Final answer
    x = 521,426.08

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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.