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Finding the Fourth Proportional to 936.56, 1,404.66 and 589.88

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Solution

The fourth proportional to 936.56, 1,404.66 and 589.88 is: 884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.56 : 1,404.66 = 589.88 : x
  2. Step 2: Convert to fraction form
    936.56/1,404.66 = 589.88/x
  3. Step 3: Cross multiply
    936.56x = 1,404.66 × 589.88
  4. Step 4: Simplify right side
    936.56x = 828,580.84
  5. Step 5: Solve for x
    x = 828,580.84/936.56
  6. Step 6: Final answer
    x = 884.71

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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.