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Finding the Fourth Proportional to 401,772.18, 599,108.56 and 398,166.06

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Solution

The fourth proportional to 401,772.18, 599,108.56 and 398,166.06 is: 593,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,772.18 : 599,108.56 = 398,166.06 : x
  2. Step 2: Convert to fraction form
    401,772.18/599,108.56 = 398,166.06/x
  3. Step 3: Cross multiply
    401,772.18x = 599,108.56 × 398,166.06
  4. Step 4: Simplify right side
    401,772.18x = 238,544,691,851.93
  5. Step 5: Solve for x
    x = 238,544,691,851.93/401,772.18
  6. Step 6: Final answer
    x = 593,731.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.