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Finding the Fourth Proportional to 403,701.30, 605,406.15 and 203,955.30

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Solution

The fourth proportional to 403,701.30, 605,406.15 and 203,955.30 is: 305,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,701.30 : 605,406.15 = 203,955.30 : x
  2. Step 2: Convert to fraction form
    403,701.30/605,406.15 = 203,955.30/x
  3. Step 3: Cross multiply
    403,701.30x = 605,406.15 × 203,955.30
  4. Step 4: Simplify right side
    403,701.30x = 123,475,792,945.10
  5. Step 5: Solve for x
    x = 123,475,792,945.10/403,701.30
  6. Step 6: Final answer
    x = 305,859.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.