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Finding the Fourth Proportional to 404,784.40, 605,621.40 and 264,816.40

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Solution

The fourth proportional to 404,784.40, 605,621.40 and 264,816.40 is: 396,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,784.40 : 605,621.40 = 264,816.40 : x
  2. Step 2: Convert to fraction form
    404,784.40/605,621.40 = 264,816.40/x
  3. Step 3: Cross multiply
    404,784.40x = 605,621.40 × 264,816.40
  4. Step 4: Simplify right side
    404,784.40x = 160,378,478,910.96
  5. Step 5: Solve for x
    x = 160,378,478,910.96/404,784.40
  6. Step 6: Final answer
    x = 396,207.16

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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.