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Finding the Fourth Proportional to 582,920.20, 804,432.82 and 328,275.72

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Solution

The fourth proportional to 582,920.20, 804,432.82 and 328,275.72 is: 453,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,920.20 : 804,432.82 = 328,275.72 : x
  2. Step 2: Convert to fraction form
    582,920.20/804,432.82 = 328,275.72/x
  3. Step 3: Cross multiply
    582,920.20x = 804,432.82 × 328,275.72
  4. Step 4: Simplify right side
    582,920.20x = 264,075,763,177.13
  5. Step 5: Solve for x
    x = 264,075,763,177.13/582,920.20
  6. Step 6: Final answer
    x = 453,022.15

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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.