Home / 838,886.80-1,258,330.20-277,921.30

Finding the Fourth Proportional to 838,886.80, 1,258,330.20 and 277,921.30

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Solution

The fourth proportional to 838,886.80, 1,258,330.20 and 277,921.30 is: 416,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,886.80 : 1,258,330.20 = 277,921.30 : x
  2. Step 2: Convert to fraction form
    838,886.80/1,258,330.20 = 277,921.30/x
  3. Step 3: Cross multiply
    838,886.80x = 1,258,330.20 × 277,921.30
  4. Step 4: Simplify right side
    838,886.80x = 349,716,765,013.26
  5. Step 5: Solve for x
    x = 349,716,765,013.26/838,886.80
  6. Step 6: Final answer
    x = 416,881.95

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Half scale
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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.