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Finding the Fourth Proportional to 6,388,819.32, 8,815,530.54 and 3,774,959.25

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Solution

The fourth proportional to 6,388,819.32, 8,815,530.54 and 3,774,959.25 is: 5,208,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388,819.32 : 8,815,530.54 = 3,774,959.25 : x
  2. Step 2: Convert to fraction form
    6,388,819.32/8,815,530.54 = 3,774,959.25/x
  3. Step 3: Cross multiply
    6,388,819.32x = 8,815,530.54 × 3,774,959.25
  4. Step 4: Simplify right side
    6,388,819.32x = 33,278,268,555,630.49
  5. Step 5: Solve for x
    x = 33,278,268,555,630.49/6,388,819.32
  6. Step 6: Final answer
    x = 5,208,829.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.