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Finding the Fourth Proportional to 962.42, 1,442.75 and 523.04

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Solution

The fourth proportional to 962.42, 1,442.75 and 523.04 is: 784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.42 : 1,442.75 = 523.04 : x
  2. Step 2: Convert to fraction form
    962.42/1,442.75 = 523.04/x
  3. Step 3: Cross multiply
    962.42x = 1,442.75 × 523.04
  4. Step 4: Simplify right side
    962.42x = 754,606.13
  5. Step 5: Solve for x
    x = 754,606.13/962.42
  6. Step 6: Final answer
    x = 784.08

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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.