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Finding the Fourth Proportional to 482,018.78, 723,536.96 and 471,161.60

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Solution

The fourth proportional to 482,018.78, 723,536.96 and 471,161.60 is: 707,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,018.78 : 723,536.96 = 471,161.60 : x
  2. Step 2: Convert to fraction form
    482,018.78/723,536.96 = 471,161.60/x
  3. Step 3: Cross multiply
    482,018.78x = 723,536.96 × 471,161.60
  4. Step 4: Simplify right side
    482,018.78x = 340,902,831,732.74
  5. Step 5: Solve for x
    x = 340,902,831,732.74/482,018.78
  6. Step 6: Final answer
    x = 707,239.73

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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.