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Finding the Fourth Proportional to 515,251.16, 772,211.44 and 230,733.80

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Solution

The fourth proportional to 515,251.16, 772,211.44 and 230,733.80 is: 345,802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,251.16 : 772,211.44 = 230,733.80 : x
  2. Step 2: Convert to fraction form
    515,251.16/772,211.44 = 230,733.80/x
  3. Step 3: Cross multiply
    515,251.16x = 772,211.44 × 230,733.80
  4. Step 4: Simplify right side
    515,251.16x = 178,175,279,954.67
  5. Step 5: Solve for x
    x = 178,175,279,954.67/515,251.16
  6. Step 6: Final answer
    x = 345,802.77

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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.