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Finding the Fourth Proportional to 935.24, 1,403.40 and 358.52

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Solution

The fourth proportional to 935.24, 1,403.40 and 358.52 is: 537.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.24 : 1,403.40 = 358.52 : x
  2. Step 2: Convert to fraction form
    935.24/1,403.40 = 358.52/x
  3. Step 3: Cross multiply
    935.24x = 1,403.40 × 358.52
  4. Step 4: Simplify right side
    935.24x = 503,146.97
  5. Step 5: Solve for x
    x = 503,146.97/935.24
  6. Step 6: Final answer
    x = 537.99

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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.