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Finding the Fourth Proportional to 472,759.38, 652,381.45 and 268,781.53

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Solution

The fourth proportional to 472,759.38, 652,381.45 and 268,781.53 is: 370,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,759.38 : 652,381.45 = 268,781.53 : x
  2. Step 2: Convert to fraction form
    472,759.38/652,381.45 = 268,781.53/x
  3. Step 3: Cross multiply
    472,759.38x = 652,381.45 × 268,781.53
  4. Step 4: Simplify right side
    472,759.38x = 175,348,084,274.62
  5. Step 5: Solve for x
    x = 175,348,084,274.62/472,759.38
  6. Step 6: Final answer
    x = 370,903.45

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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.