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Finding the Fourth Proportional to 519,883.20, 779,241.60 and 295,351.20

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Solution

The fourth proportional to 519,883.20, 779,241.60 and 295,351.20 is: 442,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,883.20 : 779,241.60 = 295,351.20 : x
  2. Step 2: Convert to fraction form
    519,883.20/779,241.60 = 295,351.20/x
  3. Step 3: Cross multiply
    519,883.20x = 779,241.60 × 295,351.20
  4. Step 4: Simplify right side
    519,883.20x = 230,149,941,649.92
  5. Step 5: Solve for x
    x = 230,149,941,649.92/519,883.20
  6. Step 6: Final answer
    x = 442,695.48

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1.5x scale

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.