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Finding the Fourth Proportional to 547,802.96, 755,892.92 and 306,055.52

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Solution

The fourth proportional to 547,802.96, 755,892.92 and 306,055.52 is: 422,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,802.96 : 755,892.92 = 306,055.52 : x
  2. Step 2: Convert to fraction form
    547,802.96/755,892.92 = 306,055.52/x
  3. Step 3: Cross multiply
    547,802.96x = 755,892.92 × 306,055.52
  4. Step 4: Simplify right side
    547,802.96x = 231,345,200,694.92
  5. Step 5: Solve for x
    x = 231,345,200,694.92/547,802.96
  6. Step 6: Final answer
    x = 422,314.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.