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Finding the Fourth Proportional to 1,049.53, 1,574.35 and 356.22

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Solution

The fourth proportional to 1,049.53, 1,574.35 and 356.22 is: 534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.53 : 1,574.35 = 356.22 : x
  2. Step 2: Convert to fraction form
    1,049.53/1,574.35 = 356.22/x
  3. Step 3: Cross multiply
    1,049.53x = 1,574.35 × 356.22
  4. Step 4: Simplify right side
    1,049.53x = 560,814.96
  5. Step 5: Solve for x
    x = 560,814.96/1,049.53
  6. Step 6: Final answer
    x = 534.35

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Double scale
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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.