Home / 858,863.70-1,288,295.55-544,713.30

Finding the Fourth Proportional to 858,863.70, 1,288,295.55 and 544,713.30

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Solution

The fourth proportional to 858,863.70, 1,288,295.55 and 544,713.30 is: 817,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,863.70 : 1,288,295.55 = 544,713.30 : x
  2. Step 2: Convert to fraction form
    858,863.70/1,288,295.55 = 544,713.30/x
  3. Step 3: Cross multiply
    858,863.70x = 1,288,295.55 × 544,713.30
  4. Step 4: Simplify right side
    858,863.70x = 701,751,720,415.82
  5. Step 5: Solve for x
    x = 701,751,720,415.82/858,863.70
  6. Step 6: Final answer
    x = 817,069.95

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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.