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Finding the Fourth Proportional to 5,594,731.98, 7,720,718.72 and 3,147,344.78

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Solution

The fourth proportional to 5,594,731.98, 7,720,718.72 and 3,147,344.78 is: 4,343,329.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,594,731.98 : 7,720,718.72 = 3,147,344.78 : x
  2. Step 2: Convert to fraction form
    5,594,731.98/7,720,718.72 = 3,147,344.78/x
  3. Step 3: Cross multiply
    5,594,731.98x = 7,720,718.72 × 3,147,344.78
  4. Step 4: Simplify right side
    5,594,731.98x = 24,299,763,761,240.28
  5. Step 5: Solve for x
    x = 24,299,763,761,240.28/5,594,731.98
  6. Step 6: Final answer
    x = 4,343,329.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.