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Finding the Fourth Proportional to 609,219.24, 840,612.60 and 351,049.56

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Solution

The fourth proportional to 609,219.24, 840,612.60 and 351,049.56 is: 484,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,219.24 : 840,612.60 = 351,049.56 : x
  2. Step 2: Convert to fraction form
    609,219.24/840,612.60 = 351,049.56/x
  3. Step 3: Cross multiply
    609,219.24x = 840,612.60 × 351,049.56
  4. Step 4: Simplify right side
    609,219.24x = 295,096,683,360.46
  5. Step 5: Solve for x
    x = 295,096,683,360.46/609,219.24
  6. Step 6: Final answer
    x = 484,385.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.