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Finding the Fourth Proportional to 3,974,952.15, 5,962,428.23 and 983,136.15

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Solution

The fourth proportional to 3,974,952.15, 5,962,428.23 and 983,136.15 is: 1,474,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974,952.15 : 5,962,428.23 = 983,136.15 : x
  2. Step 2: Convert to fraction form
    3,974,952.15/5,962,428.23 = 983,136.15/x
  3. Step 3: Cross multiply
    3,974,952.15x = 5,962,428.23 × 983,136.15
  4. Step 4: Simplify right side
    3,974,952.15x = 5,861,878,729,777.83
  5. Step 5: Solve for x
    x = 5,861,878,729,777.83/3,974,952.15
  6. Step 6: Final answer
    x = 1,474,704.23

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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.