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Finding the Fourth Proportional to 2,978,394.44, 4,433,905.33 and 2,960,679.88

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Solution

The fourth proportional to 2,978,394.44, 4,433,905.33 and 2,960,679.88 is: 4,407,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,394.44 : 4,433,905.33 = 2,960,679.88 : x
  2. Step 2: Convert to fraction form
    2,978,394.44/4,433,905.33 = 2,960,679.88/x
  3. Step 3: Cross multiply
    2,978,394.44x = 4,433,905.33 × 2,960,679.88
  4. Step 4: Simplify right side
    2,978,394.44x = 13,127,374,300,355.76
  5. Step 5: Solve for x
    x = 13,127,374,300,355.76/2,978,394.44
  6. Step 6: Final answer
    x = 4,407,533.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.