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Finding the Fourth Proportional to 573,728.34, 791,803.17 and 328,745.54

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Solution

The fourth proportional to 573,728.34, 791,803.17 and 328,745.54 is: 453,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,728.34 : 791,803.17 = 328,745.54 : x
  2. Step 2: Convert to fraction form
    573,728.34/791,803.17 = 328,745.54/x
  3. Step 3: Cross multiply
    573,728.34x = 791,803.17 × 328,745.54
  4. Step 4: Simplify right side
    573,728.34x = 260,301,760,695.36
  5. Step 5: Solve for x
    x = 260,301,760,695.36/573,728.34
  6. Step 6: Final answer
    x = 453,702.11

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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.