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Finding the Fourth Proportional to 3,358,641.39, 5,034,978.56 and 1,308,827.45

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Solution

The fourth proportional to 3,358,641.39, 5,034,978.56 and 1,308,827.45 is: 1,962,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358,641.39 : 5,034,978.56 = 1,308,827.45 : x
  2. Step 2: Convert to fraction form
    3,358,641.39/5,034,978.56 = 1,308,827.45/x
  3. Step 3: Cross multiply
    3,358,641.39x = 5,034,978.56 × 1,308,827.45
  4. Step 4: Simplify right side
    3,358,641.39x = 6,589,918,117,770.44
  5. Step 5: Solve for x
    x = 6,589,918,117,770.44/3,358,641.39
  6. Step 6: Final answer
    x = 1,962,078.52

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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.