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Finding the Fourth Proportional to 936.24, 1,403.04 and 503.04

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Solution

The fourth proportional to 936.24, 1,403.04 and 503.04 is: 753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.24 : 1,403.04 = 503.04 : x
  2. Step 2: Convert to fraction form
    936.24/1,403.04 = 503.04/x
  3. Step 3: Cross multiply
    936.24x = 1,403.04 × 503.04
  4. Step 4: Simplify right side
    936.24x = 705,785.24
  5. Step 5: Solve for x
    x = 705,785.24/936.24
  6. Step 6: Final answer
    x = 753.85

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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.