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Finding the Fourth Proportional to 421,759.61, 582,027.63 and 230,772.95

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Solution

The fourth proportional to 421,759.61, 582,027.63 and 230,772.95 is: 318,466.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,759.61 : 582,027.63 = 230,772.95 : x
  2. Step 2: Convert to fraction form
    421,759.61/582,027.63 = 230,772.95/x
  3. Step 3: Cross multiply
    421,759.61x = 582,027.63 × 230,772.95
  4. Step 4: Simplify right side
    421,759.61x = 134,316,233,156.61
  5. Step 5: Solve for x
    x = 134,316,233,156.61/421,759.61
  6. Step 6: Final answer
    x = 318,466.33

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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.