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Finding the Fourth Proportional to 486,670.66, 730,005.97 and 183,121.89

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Solution

The fourth proportional to 486,670.66, 730,005.97 and 183,121.89 is: 274,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,670.66 : 730,005.97 = 183,121.89 : x
  2. Step 2: Convert to fraction form
    486,670.66/730,005.97 = 183,121.89/x
  3. Step 3: Cross multiply
    486,670.66x = 730,005.97 × 183,121.89
  4. Step 4: Simplify right side
    486,670.66x = 133,680,072,937.68
  5. Step 5: Solve for x
    x = 133,680,072,937.68/486,670.66
  6. Step 6: Final answer
    x = 274,682.83

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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.