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Finding the Fourth Proportional to 3,184.48, 4,777.40 and 963.12

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Solution

The fourth proportional to 3,184.48, 4,777.40 and 963.12 is: 1,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.48 : 4,777.40 = 963.12 : x
  2. Step 2: Convert to fraction form
    3,184.48/4,777.40 = 963.12/x
  3. Step 3: Cross multiply
    3,184.48x = 4,777.40 × 963.12
  4. Step 4: Simplify right side
    3,184.48x = 4,601,204.67
  5. Step 5: Solve for x
    x = 4,601,204.67/3,184.48
  6. Step 6: Final answer
    x = 1,444.89

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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.