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Finding the Fourth Proportional to 3,972,894.80, 5,959,396.80 and 1,133,007.20

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Solution

The fourth proportional to 3,972,894.80, 5,959,396.80 and 1,133,007.20 is: 1,699,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972,894.80 : 5,959,396.80 = 1,133,007.20 : x
  2. Step 2: Convert to fraction form
    3,972,894.80/5,959,396.80 = 1,133,007.20/x
  3. Step 3: Cross multiply
    3,972,894.80x = 5,959,396.80 × 1,133,007.20
  4. Step 4: Simplify right side
    3,972,894.80x = 6,752,039,482,056.96
  5. Step 5: Solve for x
    x = 6,752,039,482,056.96/3,972,894.80
  6. Step 6: Final answer
    x = 1,699,526.37

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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.