Home / 5,211,038.68-7,191,520.50-2,887,882.36

Finding the Fourth Proportional to 5,211,038.68, 7,191,520.50 and 2,887,882.36

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Solution

The fourth proportional to 5,211,038.68, 7,191,520.50 and 2,887,882.36 is: 3,985,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,038.68 : 7,191,520.50 = 2,887,882.36 : x
  2. Step 2: Convert to fraction form
    5,211,038.68/7,191,520.50 = 2,887,882.36/x
  3. Step 3: Cross multiply
    5,211,038.68x = 7,191,520.50 × 2,887,882.36
  4. Step 4: Simplify right side
    5,211,038.68x = 20,768,265,193,528.38
  5. Step 5: Solve for x
    x = 20,768,265,193,528.38/5,211,038.68
  6. Step 6: Final answer
    x = 3,985,436.78

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.