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Finding the Fourth Proportional to 328,233.20, 492,349.80 and 187,876.40

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Solution

The fourth proportional to 328,233.20, 492,349.80 and 187,876.40 is: 281,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,233.20 : 492,349.80 = 187,876.40 : x
  2. Step 2: Convert to fraction form
    328,233.20/492,349.80 = 187,876.40/x
  3. Step 3: Cross multiply
    328,233.20x = 492,349.80 × 187,876.40
  4. Step 4: Simplify right side
    328,233.20x = 92,500,907,964.72
  5. Step 5: Solve for x
    x = 92,500,907,964.72/328,233.20
  6. Step 6: Final answer
    x = 281,814.60

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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.