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Finding the Fourth Proportional to 3,762,241.88, 5,641,978.55 and 1,299,631.04

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Solution

The fourth proportional to 3,762,241.88, 5,641,978.55 and 1,299,631.04 is: 1,948,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762,241.88 : 5,641,978.55 = 1,299,631.04 : x
  2. Step 2: Convert to fraction form
    3,762,241.88/5,641,978.55 = 1,299,631.04/x
  3. Step 3: Cross multiply
    3,762,241.88x = 5,641,978.55 × 1,299,631.04
  4. Step 4: Simplify right side
    3,762,241.88x = 7,332,490,444,096.04
  5. Step 5: Solve for x
    x = 7,332,490,444,096.04/3,762,241.88
  6. Step 6: Final answer
    x = 1,948,968.38

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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.