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Finding the Fourth Proportional to 373,908.20, 560,084.70 and 311,700.20

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Solution

The fourth proportional to 373,908.20, 560,084.70 and 311,700.20 is: 466,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,908.20 : 560,084.70 = 311,700.20 : x
  2. Step 2: Convert to fraction form
    373,908.20/560,084.70 = 311,700.20/x
  3. Step 3: Cross multiply
    373,908.20x = 560,084.70 × 311,700.20
  4. Step 4: Simplify right side
    373,908.20x = 174,578,513,006.94
  5. Step 5: Solve for x
    x = 174,578,513,006.94/373,908.20
  6. Step 6: Final answer
    x = 466,902.07

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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.