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Finding the Fourth Proportional to 329,085.20, 493,627.80 and 151,938.20

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Solution

The fourth proportional to 329,085.20, 493,627.80 and 151,938.20 is: 227,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,085.20 : 493,627.80 = 151,938.20 : x
  2. Step 2: Convert to fraction form
    329,085.20/493,627.80 = 151,938.20/x
  3. Step 3: Cross multiply
    329,085.20x = 493,627.80 × 151,938.20
  4. Step 4: Simplify right side
    329,085.20x = 75,000,919,401.96
  5. Step 5: Solve for x
    x = 75,000,919,401.96/329,085.20
  6. Step 6: Final answer
    x = 227,907.30

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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.