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Finding the Fourth Proportional to 484,727.80, 727,091.70 and 335,428.60

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Solution

The fourth proportional to 484,727.80, 727,091.70 and 335,428.60 is: 503,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,727.80 : 727,091.70 = 335,428.60 : x
  2. Step 2: Convert to fraction form
    484,727.80/727,091.70 = 335,428.60/x
  3. Step 3: Cross multiply
    484,727.80x = 727,091.70 × 335,428.60
  4. Step 4: Simplify right side
    484,727.80x = 243,887,351,002.62
  5. Step 5: Solve for x
    x = 243,887,351,002.62/484,727.80
  6. Step 6: Final answer
    x = 503,142.90

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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.