Home / 738,901.20-1,108,190.92-199,144.88

Finding the Fourth Proportional to 738,901.20, 1,108,190.92 and 199,144.88

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Solution

The fourth proportional to 738,901.20, 1,108,190.92 and 199,144.88 is: 298,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,901.20 : 1,108,190.92 = 199,144.88 : x
  2. Step 2: Convert to fraction form
    738,901.20/1,108,190.92 = 199,144.88/x
  3. Step 3: Cross multiply
    738,901.20x = 1,108,190.92 × 199,144.88
  4. Step 4: Simplify right side
    738,901.20x = 220,690,547,780.49
  5. Step 5: Solve for x
    x = 220,690,547,780.49/738,901.20
  6. Step 6: Final answer
    x = 298,673.96

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Double scale
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1.5x scale

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.