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Finding the Fourth Proportional to 2,392.70, 3,586.95 and 930.83

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Solution

The fourth proportional to 2,392.70, 3,586.95 and 930.83 is: 1,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.70 : 3,586.95 = 930.83 : x
  2. Step 2: Convert to fraction form
    2,392.70/3,586.95 = 930.83/x
  3. Step 3: Cross multiply
    2,392.70x = 3,586.95 × 930.83
  4. Step 4: Simplify right side
    2,392.70x = 3,338,822.73
  5. Step 5: Solve for x
    x = 3,338,822.73/2,392.70
  6. Step 6: Final answer
    x = 1,395.42

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1.5x scale

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.