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Finding the Fourth Proportional to 535,208.22, 801,139.28 and 345,414.89

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Solution

The fourth proportional to 535,208.22, 801,139.28 and 345,414.89 is: 517,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,208.22 : 801,139.28 = 345,414.89 : x
  2. Step 2: Convert to fraction form
    535,208.22/801,139.28 = 345,414.89/x
  3. Step 3: Cross multiply
    535,208.22x = 801,139.28 × 345,414.89
  4. Step 4: Simplify right side
    535,208.22x = 276,725,436,551.65
  5. Step 5: Solve for x
    x = 276,725,436,551.65/535,208.22
  6. Step 6: Final answer
    x = 517,042.58

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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.