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Finding the Fourth Proportional to 2,642,508.80, 3,707,910.40 and 2,642,508.80

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Solution

The fourth proportional to 2,642,508.80, 3,707,910.40 and 2,642,508.80 is: 3,707,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,508.80 : 3,707,910.40 = 2,642,508.80 : x
  2. Step 2: Convert to fraction form
    2,642,508.80/3,707,910.40 = 2,642,508.80/x
  3. Step 3: Cross multiply
    2,642,508.80x = 3,707,910.40 × 2,642,508.80
  4. Step 4: Simplify right side
    2,642,508.80x = 9,798,185,861,611.52
  5. Step 5: Solve for x
    x = 9,798,185,861,611.52/2,642,508.80
  6. Step 6: Final answer
    x = 3,707,910.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.