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Finding the Fourth Proportional to 453,891.08, 680,363.34 and 253,918.28

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Solution

The fourth proportional to 453,891.08, 680,363.34 and 253,918.28 is: 380,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,891.08 : 680,363.34 = 253,918.28 : x
  2. Step 2: Convert to fraction form
    453,891.08/680,363.34 = 253,918.28/x
  3. Step 3: Cross multiply
    453,891.08x = 680,363.34 × 253,918.28
  4. Step 4: Simplify right side
    453,891.08x = 172,756,689,067.86
  5. Step 5: Solve for x
    x = 172,756,689,067.86/453,891.08
  6. Step 6: Final answer
    x = 380,612.66

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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.