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Finding the Fourth Proportional to 949.16, 1,424.02 and 332.84

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Solution

The fourth proportional to 949.16, 1,424.02 and 332.84 is: 499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.16 : 1,424.02 = 332.84 : x
  2. Step 2: Convert to fraction form
    949.16/1,424.02 = 332.84/x
  3. Step 3: Cross multiply
    949.16x = 1,424.02 × 332.84
  4. Step 4: Simplify right side
    949.16x = 473,970.82
  5. Step 5: Solve for x
    x = 473,970.82/949.16
  6. Step 6: Final answer
    x = 499.36

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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.