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Finding the Fourth Proportional to 573,691.53, 791,093.22 and 428,264.06

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Solution

The fourth proportional to 573,691.53, 791,093.22 and 428,264.06 is: 590,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,691.53 : 791,093.22 = 428,264.06 : x
  2. Step 2: Convert to fraction form
    573,691.53/791,093.22 = 428,264.06/x
  3. Step 3: Cross multiply
    573,691.53x = 791,093.22 × 428,264.06
  4. Step 4: Simplify right side
    573,691.53x = 338,796,795,401.31
  5. Step 5: Solve for x
    x = 338,796,795,401.31/573,691.53
  6. Step 6: Final answer
    x = 590,555.68

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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.