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Finding the Fourth Proportional to 524,936.40, 787,404.60 and 259,215.90

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Solution

The fourth proportional to 524,936.40, 787,404.60 and 259,215.90 is: 388,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,936.40 : 787,404.60 = 259,215.90 : x
  2. Step 2: Convert to fraction form
    524,936.40/787,404.60 = 259,215.90/x
  3. Step 3: Cross multiply
    524,936.40x = 787,404.60 × 259,215.90
  4. Step 4: Simplify right side
    524,936.40x = 204,107,792,053.14
  5. Step 5: Solve for x
    x = 204,107,792,053.14/524,936.40
  6. Step 6: Final answer
    x = 388,823.85

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Similar ratio
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1.5x scale

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.