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Finding the Fourth Proportional to 4,904.40, 7,342.20 and 2,960.40

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Solution

The fourth proportional to 4,904.40, 7,342.20 and 2,960.40 is: 4,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,904.40 : 7,342.20 = 2,960.40 : x
  2. Step 2: Convert to fraction form
    4,904.40/7,342.20 = 2,960.40/x
  3. Step 3: Cross multiply
    4,904.40x = 7,342.20 × 2,960.40
  4. Step 4: Simplify right side
    4,904.40x = 21,735,848.88
  5. Step 5: Solve for x
    x = 21,735,848.88/4,904.40
  6. Step 6: Final answer
    x = 4,431.91

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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.