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Finding the Fourth Proportional to 3,673,275.98, 5,509,969.55 and 1,398,926.28

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Solution

The fourth proportional to 3,673,275.98, 5,509,969.55 and 1,398,926.28 is: 2,098,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673,275.98 : 5,509,969.55 = 1,398,926.28 : x
  2. Step 2: Convert to fraction form
    3,673,275.98/5,509,969.55 = 1,398,926.28/x
  3. Step 3: Cross multiply
    3,673,275.98x = 5,509,969.55 × 1,398,926.28
  4. Step 4: Simplify right side
    3,673,275.98x = 7,708,041,198,500.14
  5. Step 5: Solve for x
    x = 7,708,041,198,500.14/3,673,275.98
  6. Step 6: Final answer
    x = 2,098,410.59

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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.