Home / 838,962.30-1,258,443.45-277,923.90

Finding the Fourth Proportional to 838,962.30, 1,258,443.45 and 277,923.90

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Solution

The fourth proportional to 838,962.30, 1,258,443.45 and 277,923.90 is: 416,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,962.30 : 1,258,443.45 = 277,923.90 : x
  2. Step 2: Convert to fraction form
    838,962.30/1,258,443.45 = 277,923.90/x
  3. Step 3: Cross multiply
    838,962.30x = 1,258,443.45 × 277,923.90
  4. Step 4: Simplify right side
    838,962.30x = 349,751,511,553.46
  5. Step 5: Solve for x
    x = 349,751,511,553.46/838,962.30
  6. Step 6: Final answer
    x = 416,885.85

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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.