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Finding the Fourth Proportional to 492,668.68, 679,766.45 and 277,767.23

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Solution

The fourth proportional to 492,668.68, 679,766.45 and 277,767.23 is: 383,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,668.68 : 679,766.45 = 277,767.23 : x
  2. Step 2: Convert to fraction form
    492,668.68/679,766.45 = 277,767.23/x
  3. Step 3: Cross multiply
    492,668.68x = 679,766.45 × 277,767.23
  4. Step 4: Simplify right side
    492,668.68x = 188,816,841,419.43
  5. Step 5: Solve for x
    x = 188,816,841,419.43/492,668.68
  6. Step 6: Final answer
    x = 383,253.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.