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Finding the Fourth Proportional to 582,679.53, 804,112.79 and 328,039.83

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Solution

The fourth proportional to 582,679.53, 804,112.79 and 328,039.83 is: 452,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,679.53 : 804,112.79 = 328,039.83 : x
  2. Step 2: Convert to fraction form
    582,679.53/804,112.79 = 328,039.83/x
  3. Step 3: Cross multiply
    582,679.53x = 804,112.79 × 328,039.83
  4. Step 4: Simplify right side
    582,679.53x = 263,781,021,292.23
  5. Step 5: Solve for x
    x = 263,781,021,292.23/582,679.53
  6. Step 6: Final answer
    x = 452,703.43

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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.