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Finding the Fourth Proportional to 401,977.96, 605,373.52 and 366,105.70

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Solution

The fourth proportional to 401,977.96, 605,373.52 and 366,105.70 is: 551,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,977.96 : 605,373.52 = 366,105.70 : x
  2. Step 2: Convert to fraction form
    401,977.96/605,373.52 = 366,105.70/x
  3. Step 3: Cross multiply
    401,977.96x = 605,373.52 × 366,105.70
  4. Step 4: Simplify right side
    401,977.96x = 221,630,696,301.06
  5. Step 5: Solve for x
    x = 221,630,696,301.06/401,977.96
  6. Step 6: Final answer
    x = 551,350.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.