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Finding the Fourth Proportional to 1,965,842.88, 2,948,765.56 and 545,899.11

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Solution

The fourth proportional to 1,965,842.88, 2,948,765.56 and 545,899.11 is: 818,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,842.88 : 2,948,765.56 = 545,899.11 : x
  2. Step 2: Convert to fraction form
    1,965,842.88/2,948,765.56 = 545,899.11/x
  3. Step 3: Cross multiply
    1,965,842.88x = 2,948,765.56 × 545,899.11
  4. Step 4: Simplify right side
    1,965,842.88x = 1,609,728,493,437.90
  5. Step 5: Solve for x
    x = 1,609,728,493,437.90/1,965,842.88
  6. Step 6: Final answer
    x = 818,849.01

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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.