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Finding the Fourth Proportional to 542, 747.96 and 335

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Solution

The fourth proportional to 542, 747.96 and 335 is: 462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542 : 747.96 = 335 : x
  2. Step 2: Convert to fraction form
    542/747.96 = 335/x
  3. Step 3: Cross multiply
    542x = 747.96 × 335
  4. Step 4: Simplify right side
    542x = 250,566.60
  5. Step 5: Solve for x
    x = 250,566.60/542
  6. Step 6: Final answer
    x = 462.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.