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Finding the Fourth Proportional to 702,515.52, 1,053,774 and 328,800.96

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Solution

The fourth proportional to 702,515.52, 1,053,774 and 328,800.96 is: 493,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,515.52 : 1,053,774 = 328,800.96 : x
  2. Step 2: Convert to fraction form
    702,515.52/1,053,774 = 328,800.96/x
  3. Step 3: Cross multiply
    702,515.52x = 1,053,774 × 328,800.96
  4. Step 4: Simplify right side
    702,515.52x = 346,481,902,823.04
  5. Step 5: Solve for x
    x = 346,481,902,823.04/702,515.52
  6. Step 6: Final answer
    x = 493,201.78

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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.