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Finding the Fourth Proportional to 3,936,756.61, 5,905,134.99 and 944,940.61

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Solution

The fourth proportional to 3,936,756.61, 5,905,134.99 and 944,940.61 is: 1,417,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,756.61 : 5,905,134.99 = 944,940.61 : x
  2. Step 2: Convert to fraction form
    3,936,756.61/5,905,134.99 = 944,940.61/x
  3. Step 3: Cross multiply
    3,936,756.61x = 5,905,134.99 × 944,940.61
  4. Step 4: Simplify right side
    3,936,756.61x = 5,580,001,866,964.36
  5. Step 5: Solve for x
    x = 5,580,001,866,964.36/3,936,756.61
  6. Step 6: Final answer
    x = 1,417,410.93

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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.