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Finding the Fourth Proportional to 466,072.20, 697,358.70 and 308,608.20

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Solution

The fourth proportional to 466,072.20, 697,358.70 and 308,608.20 is: 461,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,072.20 : 697,358.70 = 308,608.20 : x
  2. Step 2: Convert to fraction form
    466,072.20/697,358.70 = 308,608.20/x
  3. Step 3: Cross multiply
    466,072.20x = 697,358.70 × 308,608.20
  4. Step 4: Simplify right side
    466,072.20x = 215,210,613,161.34
  5. Step 5: Solve for x
    x = 215,210,613,161.34/466,072.20
  6. Step 6: Final answer
    x = 461,753.81

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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.