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Finding the Fourth Proportional to 366,908.15, 512,621.65 and 366,908.15

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Solution

The fourth proportional to 366,908.15, 512,621.65 and 366,908.15 is: 512,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.15 : 512,621.65 = 366,908.15 : x
  2. Step 2: Convert to fraction form
    366,908.15/512,621.65 = 366,908.15/x
  3. Step 3: Cross multiply
    366,908.15x = 512,621.65 × 366,908.15
  4. Step 4: Simplify right side
    366,908.15x = 188,085,061,251.45
  5. Step 5: Solve for x
    x = 188,085,061,251.45/366,908.15
  6. Step 6: Final answer
    x = 512,621.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.