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Finding the Fourth Proportional to 962.67, 1,444.76 and 415.25

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Solution

The fourth proportional to 962.67, 1,444.76 and 415.25 is: 623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.67 : 1,444.76 = 415.25 : x
  2. Step 2: Convert to fraction form
    962.67/1,444.76 = 415.25/x
  3. Step 3: Cross multiply
    962.67x = 1,444.76 × 415.25
  4. Step 4: Simplify right side
    962.67x = 599,927.29
  5. Step 5: Solve for x
    x = 599,927.29/962.67
  6. Step 6: Final answer
    x = 623.19

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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.