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Finding the Fourth Proportional to 3,891,661.61, 5,832,429.00 and 1,583,464.79

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Solution

The fourth proportional to 3,891,661.61, 5,832,429.00 and 1,583,464.79 is: 2,373,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,661.61 : 5,832,429.00 = 1,583,464.79 : x
  2. Step 2: Convert to fraction form
    3,891,661.61/5,832,429.00 = 1,583,464.79/x
  3. Step 3: Cross multiply
    3,891,661.61x = 5,832,429.00 × 1,583,464.79
  4. Step 4: Simplify right side
    3,891,661.61x = 9,235,445,936,471.43
  5. Step 5: Solve for x
    x = 9,235,445,936,471.43/3,891,661.61
  6. Step 6: Final answer
    x = 2,373,136.95

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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.