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Finding the Fourth Proportional to 404,691.48, 607,103.10 and 151,991.64

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Solution

The fourth proportional to 404,691.48, 607,103.10 and 151,991.64 is: 228,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,691.48 : 607,103.10 = 151,991.64 : x
  2. Step 2: Convert to fraction form
    404,691.48/607,103.10 = 151,991.64/x
  3. Step 3: Cross multiply
    404,691.48x = 607,103.10 × 151,991.64
  4. Step 4: Simplify right side
    404,691.48x = 92,274,595,818.08
  5. Step 5: Solve for x
    x = 92,274,595,818.08/404,691.48
  6. Step 6: Final answer
    x = 228,012.20

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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.