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Finding the Fourth Proportional to 1,615.95, 2,230.47 and 952.83

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Solution

The fourth proportional to 1,615.95, 2,230.47 and 952.83 is: 1,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.95 : 2,230.47 = 952.83 : x
  2. Step 2: Convert to fraction form
    1,615.95/2,230.47 = 952.83/x
  3. Step 3: Cross multiply
    1,615.95x = 2,230.47 × 952.83
  4. Step 4: Simplify right side
    1,615.95x = 2,125,258.73
  5. Step 5: Solve for x
    x = 2,125,258.73/1,615.95
  6. Step 6: Final answer
    x = 1,315.18

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1.5x scale

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.