Home / 3,078,147.78-4,617,221.71-834,285.78

Finding the Fourth Proportional to 3,078,147.78, 4,617,221.71 and 834,285.78

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Solution

The fourth proportional to 3,078,147.78, 4,617,221.71 and 834,285.78 is: 1,251,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,147.78 : 4,617,221.71 = 834,285.78 : x
  2. Step 2: Convert to fraction form
    3,078,147.78/4,617,221.71 = 834,285.78/x
  3. Step 3: Cross multiply
    3,078,147.78x = 4,617,221.71 × 834,285.78
  4. Step 4: Simplify right side
    3,078,147.78x = 3,852,082,415,760.28
  5. Step 5: Solve for x
    x = 3,852,082,415,760.28/3,078,147.78
  6. Step 6: Final answer
    x = 1,251,428.68

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.