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Finding the Fourth Proportional to 403,339.80, 605,592.90 and 304,195.80

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Solution

The fourth proportional to 403,339.80, 605,592.90 and 304,195.80 is: 456,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,339.80 : 605,592.90 = 304,195.80 : x
  2. Step 2: Convert to fraction form
    403,339.80/605,592.90 = 304,195.80/x
  3. Step 3: Cross multiply
    403,339.80x = 605,592.90 × 304,195.80
  4. Step 4: Simplify right side
    403,339.80x = 184,218,816,689.82
  5. Step 5: Solve for x
    x = 184,218,816,689.82/403,339.80
  6. Step 6: Final answer
    x = 456,733.54

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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.