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Finding the Fourth Proportional to 404,690.48, 607,101.60 and 151,990.64

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Solution

The fourth proportional to 404,690.48, 607,101.60 and 151,990.64 is: 228,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,690.48 : 607,101.60 = 151,990.64 : x
  2. Step 2: Convert to fraction form
    404,690.48/607,101.60 = 151,990.64/x
  3. Step 3: Cross multiply
    404,690.48x = 607,101.60 × 151,990.64
  4. Step 4: Simplify right side
    404,690.48x = 92,273,760,729.02
  5. Step 5: Solve for x
    x = 92,273,760,729.02/404,690.48
  6. Step 6: Final answer
    x = 228,010.70

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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.