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Finding the Fourth Proportional to 1,049.93, 1,574.90 and 356.67

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Solution

The fourth proportional to 1,049.93, 1,574.90 and 356.67 is: 535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.93 : 1,574.90 = 356.67 : x
  2. Step 2: Convert to fraction form
    1,049.93/1,574.90 = 356.67/x
  3. Step 3: Cross multiply
    1,049.93x = 1,574.90 × 356.67
  4. Step 4: Simplify right side
    1,049.93x = 561,722.63
  5. Step 5: Solve for x
    x = 561,722.63/1,049.93
  6. Step 6: Final answer
    x = 535.01

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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.