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Finding the Fourth Proportional to 582,707.40, 874,185.84 and 330,107.28

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Solution

The fourth proportional to 582,707.40, 874,185.84 and 330,107.28 is: 495,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,707.40 : 874,185.84 = 330,107.28 : x
  2. Step 2: Convert to fraction form
    582,707.40/874,185.84 = 330,107.28/x
  3. Step 3: Cross multiply
    582,707.40x = 874,185.84 × 330,107.28
  4. Step 4: Simplify right side
    582,707.40x = 288,575,109,856.92
  5. Step 5: Solve for x
    x = 288,575,109,856.92/582,707.40
  6. Step 6: Final answer
    x = 495,231.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.