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Finding the Fourth Proportional to 519,686.96, 779,777.16 and 360,008.62

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Solution

The fourth proportional to 519,686.96, 779,777.16 and 360,008.62 is: 540,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,686.96 : 779,777.16 = 360,008.62 : x
  2. Step 2: Convert to fraction form
    519,686.96/779,777.16 = 360,008.62/x
  3. Step 3: Cross multiply
    519,686.96x = 779,777.16 × 360,008.62
  4. Step 4: Simplify right side
    519,686.96x = 280,726,499,279.12
  5. Step 5: Solve for x
    x = 280,726,499,279.12/519,686.96
  6. Step 6: Final answer
    x = 540,183.84

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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.