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Finding the Fourth Proportional to 403,841.80, 605,616.90 and 204,095.80

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Solution

The fourth proportional to 403,841.80, 605,616.90 and 204,095.80 is: 306,070.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,841.80 : 605,616.90 = 204,095.80 : x
  2. Step 2: Convert to fraction form
    403,841.80/605,616.90 = 204,095.80/x
  3. Step 3: Cross multiply
    403,841.80x = 605,616.90 × 204,095.80
  4. Step 4: Simplify right side
    403,841.80x = 123,603,865,699.02
  5. Step 5: Solve for x
    x = 123,603,865,699.02/403,841.80
  6. Step 6: Final answer
    x = 306,070.01

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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.