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Finding the Fourth Proportional to 404,674.80, 605,629.80 and 354,908.40

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Solution

The fourth proportional to 404,674.80, 605,629.80 and 354,908.40 is: 531,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,674.80 : 605,629.80 = 354,908.40 : x
  2. Step 2: Convert to fraction form
    404,674.80/605,629.80 = 354,908.40/x
  3. Step 3: Cross multiply
    404,674.80x = 605,629.80 × 354,908.40
  4. Step 4: Simplify right side
    404,674.80x = 214,943,103,310.32
  5. Step 5: Solve for x
    x = 214,943,103,310.32/404,674.80
  6. Step 6: Final answer
    x = 531,150.21

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1.5x scale

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.