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Finding the Fourth Proportional to 477,281.20, 715,921.80 and 264,704.80

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Solution

The fourth proportional to 477,281.20, 715,921.80 and 264,704.80 is: 397,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,281.20 : 715,921.80 = 264,704.80 : x
  2. Step 2: Convert to fraction form
    477,281.20/715,921.80 = 264,704.80/x
  3. Step 3: Cross multiply
    477,281.20x = 715,921.80 × 264,704.80
  4. Step 4: Simplify right side
    477,281.20x = 189,507,936,884.64
  5. Step 5: Solve for x
    x = 189,507,936,884.64/477,281.20
  6. Step 6: Final answer
    x = 397,057.20

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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.