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Finding the Fourth Proportional to 2,652,265.07, 3,978,425.34 and 2,123,149.58

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Solution

The fourth proportional to 2,652,265.07, 3,978,425.34 and 2,123,149.58 is: 3,184,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,265.07 : 3,978,425.34 = 2,123,149.58 : x
  2. Step 2: Convert to fraction form
    2,652,265.07/3,978,425.34 = 2,123,149.58/x
  3. Step 3: Cross multiply
    2,652,265.07x = 3,978,425.34 × 2,123,149.58
  4. Step 4: Simplify right side
    2,652,265.07x = 8,446,792,069,790.23
  5. Step 5: Solve for x
    x = 8,446,792,069,790.23/2,652,265.07
  6. Step 6: Final answer
    x = 3,184,746.57

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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.