Home / 3,781,056.78-5,218,306.74-2,149,710.30

Finding the Fourth Proportional to 3,781,056.78, 5,218,306.74 and 2,149,710.30

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Solution

The fourth proportional to 3,781,056.78, 5,218,306.74 and 2,149,710.30 is: 2,966,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,056.78 : 5,218,306.74 = 2,149,710.30 : x
  2. Step 2: Convert to fraction form
    3,781,056.78/5,218,306.74 = 2,149,710.30/x
  3. Step 3: Cross multiply
    3,781,056.78x = 5,218,306.74 × 2,149,710.30
  4. Step 4: Simplify right side
    3,781,056.78x = 11,217,847,747,537.42
  5. Step 5: Solve for x
    x = 11,217,847,747,537.42/3,781,056.78
  6. Step 6: Final answer
    x = 2,966,855.14

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Double scale
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Similar ratio
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1.5x scale

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.