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Finding the Fourth Proportional to 453,870.80, 680,806.20 and 254,805.20

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Solution

The fourth proportional to 453,870.80, 680,806.20 and 254,805.20 is: 382,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,870.80 : 680,806.20 = 254,805.20 : x
  2. Step 2: Convert to fraction form
    453,870.80/680,806.20 = 254,805.20/x
  3. Step 3: Cross multiply
    453,870.80x = 680,806.20 × 254,805.20
  4. Step 4: Simplify right side
    453,870.80x = 173,472,959,952.24
  5. Step 5: Solve for x
    x = 173,472,959,952.24/453,870.80
  6. Step 6: Final answer
    x = 382,207.80

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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.