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Finding the Fourth Proportional to 268,982.80, 403,603.80 and 189,926.80

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Solution

The fourth proportional to 268,982.80, 403,603.80 and 189,926.80 is: 284,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,982.80 : 403,603.80 = 189,926.80 : x
  2. Step 2: Convert to fraction form
    268,982.80/403,603.80 = 189,926.80/x
  3. Step 3: Cross multiply
    268,982.80x = 403,603.80 × 189,926.80
  4. Step 4: Simplify right side
    268,982.80x = 76,655,178,201.84
  5. Step 5: Solve for x
    x = 76,655,178,201.84/268,982.80
  6. Step 6: Final answer
    x = 284,981.71

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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.