Home / 663,947.10-994,608.45-363,890.70

Finding the Fourth Proportional to 663,947.10, 994,608.45 and 363,890.70

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Solution

The fourth proportional to 663,947.10, 994,608.45 and 363,890.70 is: 545,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,947.10 : 994,608.45 = 363,890.70 : x
  2. Step 2: Convert to fraction form
    663,947.10/994,608.45 = 363,890.70/x
  3. Step 3: Cross multiply
    663,947.10x = 994,608.45 × 363,890.70
  4. Step 4: Simplify right side
    663,947.10x = 361,928,765,096.42
  5. Step 5: Solve for x
    x = 361,928,765,096.42/663,947.10
  6. Step 6: Final answer
    x = 545,116.87

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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.