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Finding the Fourth Proportional to 3,318,811.07, 4,978,209.65 and 1,044,534.21

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Solution

The fourth proportional to 3,318,811.07, 4,978,209.65 and 1,044,534.21 is: 1,566,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,811.07 : 4,978,209.65 = 1,044,534.21 : x
  2. Step 2: Convert to fraction form
    3,318,811.07/4,978,209.65 = 1,044,534.21/x
  3. Step 3: Cross multiply
    3,318,811.07x = 4,978,209.65 × 1,044,534.21
  4. Step 4: Simplify right side
    3,318,811.07x = 5,199,910,278,754.46
  5. Step 5: Solve for x
    x = 5,199,910,278,754.46/3,318,811.07
  6. Step 6: Final answer
    x = 1,566,799.13

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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.