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Finding the Fourth Proportional to 2,799,993.60, 4,189,492.80 and 2,548,051.20

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Solution

The fourth proportional to 2,799,993.60, 4,189,492.80 and 2,548,051.20 is: 3,812,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799,993.60 : 4,189,492.80 = 2,548,051.20 : x
  2. Step 2: Convert to fraction form
    2,799,993.60/4,189,492.80 = 2,548,051.20/x
  3. Step 3: Cross multiply
    2,799,993.60x = 4,189,492.80 × 2,548,051.20
  4. Step 4: Simplify right side
    2,799,993.60x = 10,675,042,156,431.36
  5. Step 5: Solve for x
    x = 10,675,042,156,431.36/2,799,993.60
  6. Step 6: Final answer
    x = 3,812,523.77

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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.