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Finding the Fourth Proportional to 1,153.04, 1,729.55 and 503.82

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Solution

The fourth proportional to 1,153.04, 1,729.55 and 503.82 is: 755.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.04 : 1,729.55 = 503.82 : x
  2. Step 2: Convert to fraction form
    1,153.04/1,729.55 = 503.82/x
  3. Step 3: Cross multiply
    1,153.04x = 1,729.55 × 503.82
  4. Step 4: Simplify right side
    1,153.04x = 871,383.14
  5. Step 5: Solve for x
    x = 871,383.14/1,153.04
  6. Step 6: Final answer
    x = 755.73

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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.