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Finding the Fourth Proportional to 574,464.80, 861,697.20 and 325,632.80

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Solution

The fourth proportional to 574,464.80, 861,697.20 and 325,632.80 is: 488,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,464.80 : 861,697.20 = 325,632.80 : x
  2. Step 2: Convert to fraction form
    574,464.80/861,697.20 = 325,632.80/x
  3. Step 3: Cross multiply
    574,464.80x = 861,697.20 × 325,632.80
  4. Step 4: Simplify right side
    574,464.80x = 280,596,871,988.16
  5. Step 5: Solve for x
    x = 280,596,871,988.16/574,464.80
  6. Step 6: Final answer
    x = 488,449.20

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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.