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Finding the Fourth Proportional to 482,665.45, 666,244.86 and 299,044.93

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Solution

The fourth proportional to 482,665.45, 666,244.86 and 299,044.93 is: 412,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,665.45 : 666,244.86 = 299,044.93 : x
  2. Step 2: Convert to fraction form
    482,665.45/666,244.86 = 299,044.93/x
  3. Step 3: Cross multiply
    482,665.45x = 666,244.86 × 299,044.93
  4. Step 4: Simplify right side
    482,665.45x = 199,237,147,521.56
  5. Step 5: Solve for x
    x = 199,237,147,521.56/482,665.45
  6. Step 6: Final answer
    x = 412,785.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.