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Finding the Fourth Proportional to 1,267.02, 1,900.53 and 536.58

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Solution

The fourth proportional to 1,267.02, 1,900.53 and 536.58 is: 804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.02 : 1,900.53 = 536.58 : x
  2. Step 2: Convert to fraction form
    1,267.02/1,900.53 = 536.58/x
  3. Step 3: Cross multiply
    1,267.02x = 1,900.53 × 536.58
  4. Step 4: Simplify right side
    1,267.02x = 1,019,786.39
  5. Step 5: Solve for x
    x = 1,019,786.39/1,267.02
  6. Step 6: Final answer
    x = 804.87

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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.