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Finding the Fourth Proportional to 403,655.50, 605,592.55 and 150,961.65

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Solution

The fourth proportional to 403,655.50, 605,592.55 and 150,961.65 is: 226,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,655.50 : 605,592.55 = 150,961.65 : x
  2. Step 2: Convert to fraction form
    403,655.50/605,592.55 = 150,961.65/x
  3. Step 3: Cross multiply
    403,655.50x = 605,592.55 × 150,961.65
  4. Step 4: Simplify right side
    403,655.50x = 91,421,252,469.28
  5. Step 5: Solve for x
    x = 91,421,252,469.28/403,655.50
  6. Step 6: Final answer
    x = 226,483.36

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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.