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Finding the Fourth Proportional to 468,965.78, 647,173.35 and 254,105.78

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Solution

The fourth proportional to 468,965.78, 647,173.35 and 254,105.78 is: 350,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,965.78 : 647,173.35 = 254,105.78 : x
  2. Step 2: Convert to fraction form
    468,965.78/647,173.35 = 254,105.78/x
  3. Step 3: Cross multiply
    468,965.78x = 647,173.35 × 254,105.78
  4. Step 4: Simplify right side
    468,965.78x = 164,450,490,514.90
  5. Step 5: Solve for x
    x = 164,450,490,514.90/468,965.78
  6. Step 6: Final answer
    x = 350,666.29

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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.