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Finding the Fourth Proportional to 322,697.55, 483,881.07 and 189,617.79

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Solution

The fourth proportional to 322,697.55, 483,881.07 and 189,617.79 is: 284,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,697.55 : 483,881.07 = 189,617.79 : x
  2. Step 2: Convert to fraction form
    322,697.55/483,881.07 = 189,617.79/x
  3. Step 3: Cross multiply
    322,697.55x = 483,881.07 × 189,617.79
  4. Step 4: Simplify right side
    322,697.55x = 91,752,461,641.86
  5. Step 5: Solve for x
    x = 91,752,461,641.86/322,697.55
  6. Step 6: Final answer
    x = 284,329.59

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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.