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Finding the Fourth Proportional to 343,802.80, 515,704.20 and 237,514.60

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Solution

The fourth proportional to 343,802.80, 515,704.20 and 237,514.60 is: 356,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,802.80 : 515,704.20 = 237,514.60 : x
  2. Step 2: Convert to fraction form
    343,802.80/515,704.20 = 237,514.60/x
  3. Step 3: Cross multiply
    343,802.80x = 515,704.20 × 237,514.60
  4. Step 4: Simplify right side
    343,802.80x = 122,487,276,781.32
  5. Step 5: Solve for x
    x = 122,487,276,781.32/343,802.80
  6. Step 6: Final answer
    x = 356,271.90

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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.