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Finding the Fourth Proportional to 1,679,754, 2,519,884.80 and 542,136

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Solution

The fourth proportional to 1,679,754, 2,519,884.80 and 542,136 is: 813,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,754 : 2,519,884.80 = 542,136 : x
  2. Step 2: Convert to fraction form
    1,679,754/2,519,884.80 = 542,136/x
  3. Step 3: Cross multiply
    1,679,754x = 2,519,884.80 × 542,136
  4. Step 4: Simplify right side
    1,679,754x = 1,366,120,265,932.80
  5. Step 5: Solve for x
    x = 1,366,120,265,932.80/1,679,754
  6. Step 6: Final answer
    x = 813,285.91

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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.