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Finding the Fourth Proportional to 519,765.20, 779,064.60 and 295,233.20

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Solution

The fourth proportional to 519,765.20, 779,064.60 and 295,233.20 is: 442,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,765.20 : 779,064.60 = 295,233.20 : x
  2. Step 2: Convert to fraction form
    519,765.20/779,064.60 = 295,233.20/x
  3. Step 3: Cross multiply
    519,765.20x = 779,064.60 × 295,233.20
  4. Step 4: Simplify right side
    519,765.20x = 230,005,734,864.72
  5. Step 5: Solve for x
    x = 230,005,734,864.72/519,765.20
  6. Step 6: Final answer
    x = 442,518.54

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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.