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Finding the Fourth Proportional to 597,712.80, 896,569.20 and 394,759.20

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Solution

The fourth proportional to 597,712.80, 896,569.20 and 394,759.20 is: 592,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,712.80 : 896,569.20 = 394,759.20 : x
  2. Step 2: Convert to fraction form
    597,712.80/896,569.20 = 394,759.20/x
  3. Step 3: Cross multiply
    597,712.80x = 896,569.20 × 394,759.20
  4. Step 4: Simplify right side
    597,712.80x = 353,928,940,136.64
  5. Step 5: Solve for x
    x = 353,928,940,136.64/597,712.80
  6. Step 6: Final answer
    x = 592,138.80

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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.