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Finding the Fourth Proportional to 3,048.13, 4,572.19 and 739.63

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Solution

The fourth proportional to 3,048.13, 4,572.19 and 739.63 is: 1,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.13 : 4,572.19 = 739.63 : x
  2. Step 2: Convert to fraction form
    3,048.13/4,572.19 = 739.63/x
  3. Step 3: Cross multiply
    3,048.13x = 4,572.19 × 739.63
  4. Step 4: Simplify right side
    3,048.13x = 3,381,706.03
  5. Step 5: Solve for x
    x = 3,381,706.03/3,048.13
  6. Step 6: Final answer
    x = 1,109.44

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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.