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Finding the Fourth Proportional to 519,317.73, 778,856.31 and 164,265.57

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Solution

The fourth proportional to 519,317.73, 778,856.31 and 164,265.57 is: 246,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,317.73 : 778,856.31 = 164,265.57 : x
  2. Step 2: Convert to fraction form
    519,317.73/778,856.31 = 164,265.57/x
  3. Step 3: Cross multiply
    519,317.73x = 778,856.31 × 164,265.57
  4. Step 4: Simplify right side
    519,317.73x = 127,939,275,710.25
  5. Step 5: Solve for x
    x = 127,939,275,710.25/519,317.73
  6. Step 6: Final answer
    x = 246,360.31

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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.