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Finding the Fourth Proportional to 555,219.25, 766,205.04 and 300,570.43

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Solution

The fourth proportional to 555,219.25, 766,205.04 and 300,570.43 is: 414,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,219.25 : 766,205.04 = 300,570.43 : x
  2. Step 2: Convert to fraction form
    555,219.25/766,205.04 = 300,570.43/x
  3. Step 3: Cross multiply
    555,219.25x = 766,205.04 × 300,570.43
  4. Step 4: Simplify right side
    555,219.25x = 230,298,578,340.97
  5. Step 5: Solve for x
    x = 230,298,578,340.97/555,219.25
  6. Step 6: Final answer
    x = 414,788.53

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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.