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Finding the Fourth Proportional to 403,863.70, 605,795.55 and 401,098.90

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Solution

The fourth proportional to 403,863.70, 605,795.55 and 401,098.90 is: 601,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,863.70 : 605,795.55 = 401,098.90 : x
  2. Step 2: Convert to fraction form
    403,863.70/605,795.55 = 401,098.90/x
  3. Step 3: Cross multiply
    403,863.70x = 605,795.55 × 401,098.90
  4. Step 4: Simplify right side
    403,863.70x = 242,983,928,729.90
  5. Step 5: Solve for x
    x = 242,983,928,729.90/403,863.70
  6. Step 6: Final answer
    x = 601,648.35

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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.