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Finding the Fourth Proportional to 328,744.20, 493,116.30 and 187,026.60

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Solution

The fourth proportional to 328,744.20, 493,116.30 and 187,026.60 is: 280,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,744.20 : 493,116.30 = 187,026.60 : x
  2. Step 2: Convert to fraction form
    328,744.20/493,116.30 = 187,026.60/x
  3. Step 3: Cross multiply
    328,744.20x = 493,116.30 × 187,026.60
  4. Step 4: Simplify right side
    328,744.20x = 92,225,864,993.58
  5. Step 5: Solve for x
    x = 92,225,864,993.58/328,744.20
  6. Step 6: Final answer
    x = 280,539.90

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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.