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Finding the Fourth Proportional to 348,044.80, 522,067.20 and 343,379.20

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Solution

The fourth proportional to 348,044.80, 522,067.20 and 343,379.20 is: 515,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,044.80 : 522,067.20 = 343,379.20 : x
  2. Step 2: Convert to fraction form
    348,044.80/522,067.20 = 343,379.20/x
  3. Step 3: Cross multiply
    348,044.80x = 522,067.20 × 343,379.20
  4. Step 4: Simplify right side
    348,044.80x = 179,267,017,482.24
  5. Step 5: Solve for x
    x = 179,267,017,482.24/348,044.80
  6. Step 6: Final answer
    x = 515,068.80

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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.