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Finding the Fourth Proportional to 404,465.40, 605,896.20 and 354,601.80

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Solution

The fourth proportional to 404,465.40, 605,896.20 and 354,601.80 is: 531,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,465.40 : 605,896.20 = 354,601.80 : x
  2. Step 2: Convert to fraction form
    404,465.40/605,896.20 = 354,601.80/x
  3. Step 3: Cross multiply
    404,465.40x = 605,896.20 × 354,601.80
  4. Step 4: Simplify right side
    404,465.40x = 214,851,883,133.16
  5. Step 5: Solve for x
    x = 214,851,883,133.16/404,465.40
  6. Step 6: Final answer
    x = 531,199.66

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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.