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Finding the Fourth Proportional to 2,903.70, 4,355.47 and 1,149.62

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Solution

The fourth proportional to 2,903.70, 4,355.47 and 1,149.62 is: 1,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.70 : 4,355.47 = 1,149.62 : x
  2. Step 2: Convert to fraction form
    2,903.70/4,355.47 = 1,149.62/x
  3. Step 3: Cross multiply
    2,903.70x = 4,355.47 × 1,149.62
  4. Step 4: Simplify right side
    2,903.70x = 5,007,127.33
  5. Step 5: Solve for x
    x = 5,007,127.33/2,903.70
  6. Step 6: Final answer
    x = 1,724.40

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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.