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Finding the Fourth Proportional to 268,667.20, 403,000.80 and 189,935.20

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Solution

The fourth proportional to 268,667.20, 403,000.80 and 189,935.20 is: 284,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,667.20 : 403,000.80 = 189,935.20 : x
  2. Step 2: Convert to fraction form
    268,667.20/403,000.80 = 189,935.20/x
  3. Step 3: Cross multiply
    268,667.20x = 403,000.80 × 189,935.20
  4. Step 4: Simplify right side
    268,667.20x = 76,544,037,548.16
  5. Step 5: Solve for x
    x = 76,544,037,548.16/268,667.20
  6. Step 6: Final answer
    x = 284,902.80

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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.