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Finding the Fourth Proportional to 3,598,776.57, 5,398,164.85 and 1,202,621.20

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Solution

The fourth proportional to 3,598,776.57, 5,398,164.85 and 1,202,621.20 is: 1,803,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598,776.57 : 5,398,164.85 = 1,202,621.20 : x
  2. Step 2: Convert to fraction form
    3,598,776.57/5,398,164.85 = 1,202,621.20/x
  3. Step 3: Cross multiply
    3,598,776.57x = 5,398,164.85 × 1,202,621.20
  4. Step 4: Simplify right side
    3,598,776.57x = 6,491,947,489,704.82
  5. Step 5: Solve for x
    x = 6,491,947,489,704.82/3,598,776.57
  6. Step 6: Final answer
    x = 1,803,931.80

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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.