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Finding the Fourth Proportional to 962.67, 1,444.20 and 313.23

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Solution

The fourth proportional to 962.67, 1,444.20 and 313.23 is: 469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.67 : 1,444.20 = 313.23 : x
  2. Step 2: Convert to fraction form
    962.67/1,444.20 = 313.23/x
  3. Step 3: Cross multiply
    962.67x = 1,444.20 × 313.23
  4. Step 4: Simplify right side
    962.67x = 452,366.77
  5. Step 5: Solve for x
    x = 452,366.77/962.67
  6. Step 6: Final answer
    x = 469.91

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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.