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Finding the Fourth Proportional to 289,376.70, 433,805.85 and 189,584.70

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Solution

The fourth proportional to 289,376.70, 433,805.85 and 189,584.70 is: 284,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,376.70 : 433,805.85 = 189,584.70 : x
  2. Step 2: Convert to fraction form
    289,376.70/433,805.85 = 189,584.70/x
  3. Step 3: Cross multiply
    289,376.70x = 433,805.85 × 189,584.70
  4. Step 4: Simplify right side
    289,376.70x = 82,242,951,930.50
  5. Step 5: Solve for x
    x = 82,242,951,930.50/289,376.70
  6. Step 6: Final answer
    x = 284,207.24

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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.