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Finding the Fourth Proportional to 322,555.65, 483,669.45 and 189,476.70

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Solution

The fourth proportional to 322,555.65, 483,669.45 and 189,476.70 is: 284,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,555.65 : 483,669.45 = 189,476.70 : x
  2. Step 2: Convert to fraction form
    322,555.65/483,669.45 = 189,476.70/x
  3. Step 3: Cross multiply
    322,555.65x = 483,669.45 × 189,476.70
  4. Step 4: Simplify right side
    322,555.65x = 91,644,091,276.82
  5. Step 5: Solve for x
    x = 91,644,091,276.82/322,555.65
  6. Step 6: Final answer
    x = 284,118.70

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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.