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Finding the Fourth Proportional to 328,069.65, 492,104.48 and 187,729.05

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Solution

The fourth proportional to 328,069.65, 492,104.48 and 187,729.05 is: 281,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,069.65 : 492,104.48 = 187,729.05 : x
  2. Step 2: Convert to fraction form
    328,069.65/492,104.48 = 187,729.05/x
  3. Step 3: Cross multiply
    328,069.65x = 492,104.48 × 187,729.05
  4. Step 4: Simplify right side
    328,069.65x = 92,382,305,592.50
  5. Step 5: Solve for x
    x = 92,382,305,592.50/328,069.65
  6. Step 6: Final answer
    x = 281,593.58

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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.