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Finding the Fourth Proportional to 3,711,608.78, 5,566,047.57 and 1,282,143.98

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Solution

The fourth proportional to 3,711,608.78, 5,566,047.57 and 1,282,143.98 is: 1,922,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711,608.78 : 5,566,047.57 = 1,282,143.98 : x
  2. Step 2: Convert to fraction form
    3,711,608.78/5,566,047.57 = 1,282,143.98/x
  3. Step 3: Cross multiply
    3,711,608.78x = 5,566,047.57 × 1,282,143.98
  4. Step 4: Simplify right side
    3,711,608.78x = 7,136,474,384,269.13
  5. Step 5: Solve for x
    x = 7,136,474,384,269.13/3,711,608.78
  6. Step 6: Final answer
    x = 1,922,744.23

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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.