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Finding the Fourth Proportional to 481,031.47, 721,796.18 and 349,001.47

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Solution

The fourth proportional to 481,031.47, 721,796.18 and 349,001.47 is: 523,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,031.47 : 721,796.18 = 349,001.47 : x
  2. Step 2: Convert to fraction form
    481,031.47/721,796.18 = 349,001.47/x
  3. Step 3: Cross multiply
    481,031.47x = 721,796.18 × 349,001.47
  4. Step 4: Simplify right side
    481,031.47x = 251,907,926,115.38
  5. Step 5: Solve for x
    x = 251,907,926,115.38/481,031.47
  6. Step 6: Final answer
    x = 523,682.84

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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.