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Finding the Fourth Proportional to 335,720.80, 503,581.20 and 307,727.20

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Solution

The fourth proportional to 335,720.80, 503,581.20 and 307,727.20 is: 461,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,720.80 : 503,581.20 = 307,727.20 : x
  2. Step 2: Convert to fraction form
    335,720.80/503,581.20 = 307,727.20/x
  3. Step 3: Cross multiply
    335,720.80x = 503,581.20 × 307,727.20
  4. Step 4: Simplify right side
    335,720.80x = 154,965,632,648.64
  5. Step 5: Solve for x
    x = 154,965,632,648.64/335,720.80
  6. Step 6: Final answer
    x = 461,590.80

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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.