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Finding the Fourth Proportional to 519,391.44, 779,115.51 and 164,378.97

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Solution

The fourth proportional to 519,391.44, 779,115.51 and 164,378.97 is: 246,577.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,391.44 : 779,115.51 = 164,378.97 : x
  2. Step 2: Convert to fraction form
    519,391.44/779,115.51 = 164,378.97/x
  3. Step 3: Cross multiply
    519,391.44x = 779,115.51 × 164,378.97
  4. Step 4: Simplify right side
    519,391.44x = 128,070,205,044.83
  5. Step 5: Solve for x
    x = 128,070,205,044.83/519,391.44
  6. Step 6: Final answer
    x = 246,577.43

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1.5x scale

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.