Home / 836,998.80-1,255,498.20-437,761.95

Finding the Fourth Proportional to 836,998.80, 1,255,498.20 and 437,761.95

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Solution

The fourth proportional to 836,998.80, 1,255,498.20 and 437,761.95 is: 656,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,998.80 : 1,255,498.20 = 437,761.95 : x
  2. Step 2: Convert to fraction form
    836,998.80/1,255,498.20 = 437,761.95/x
  3. Step 3: Cross multiply
    836,998.80x = 1,255,498.20 × 437,761.95
  4. Step 4: Simplify right side
    836,998.80x = 549,609,340,253.49
  5. Step 5: Solve for x
    x = 549,609,340,253.49/836,998.80
  6. Step 6: Final answer
    x = 656,642.93

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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.