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Finding the Fourth Proportional to 2,675,616.80, 4,019,978.80 and 2,012,064.80

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Solution

The fourth proportional to 2,675,616.80, 4,019,978.80 and 2,012,064.80 is: 3,023,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675,616.80 : 4,019,978.80 = 2,012,064.80 : x
  2. Step 2: Convert to fraction form
    2,675,616.80/4,019,978.80 = 2,012,064.80/x
  3. Step 3: Cross multiply
    2,675,616.80x = 4,019,978.80 × 2,012,064.80
  4. Step 4: Simplify right side
    2,675,616.80x = 8,088,457,840,226.24
  5. Step 5: Solve for x
    x = 8,088,457,840,226.24/2,675,616.80
  6. Step 6: Final answer
    x = 3,023,025.51

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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.