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Finding the Fourth Proportional to 582,686.80, 804,122.78 and 328,047.08

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Solution

The fourth proportional to 582,686.80, 804,122.78 and 328,047.08 is: 452,713.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,686.80 : 804,122.78 = 328,047.08 : x
  2. Step 2: Convert to fraction form
    582,686.80/804,122.78 = 328,047.08/x
  3. Step 3: Cross multiply
    582,686.80x = 804,122.78 × 328,047.08
  4. Step 4: Simplify right side
    582,686.80x = 263,790,129,940.48
  5. Step 5: Solve for x
    x = 263,790,129,940.48/582,686.80
  6. Step 6: Final answer
    x = 452,713.41

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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.