Home / 856,572.20-1,284,858.30-540,002.60

Finding the Fourth Proportional to 856,572.20, 1,284,858.30 and 540,002.60

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Solution

The fourth proportional to 856,572.20, 1,284,858.30 and 540,002.60 is: 810,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,572.20 : 1,284,858.30 = 540,002.60 : x
  2. Step 2: Convert to fraction form
    856,572.20/1,284,858.30 = 540,002.60/x
  3. Step 3: Cross multiply
    856,572.20x = 1,284,858.30 × 540,002.60
  4. Step 4: Simplify right side
    856,572.20x = 693,826,822,631.58
  5. Step 5: Solve for x
    x = 693,826,822,631.58/856,572.20
  6. Step 6: Final answer
    x = 810,003.90

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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.