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Finding the Fourth Proportional to 468,846.75, 647,007.87 and 253,987.68

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Solution

The fourth proportional to 468,846.75, 647,007.87 and 253,987.68 is: 350,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,846.75 : 647,007.87 = 253,987.68 : x
  2. Step 2: Convert to fraction form
    468,846.75/647,007.87 = 253,987.68/x
  3. Step 3: Cross multiply
    468,846.75x = 647,007.87 × 253,987.68
  4. Step 4: Simplify right side
    468,846.75x = 164,332,024,608.00
  5. Step 5: Solve for x
    x = 164,332,024,608.00/468,846.75
  6. Step 6: Final answer
    x = 350,502.65

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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.