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Finding the Fourth Proportional to 332.47, 497.49 and 214.93

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Solution

The fourth proportional to 332.47, 497.49 and 214.93 is: 321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.47 : 497.49 = 214.93 : x
  2. Step 2: Convert to fraction form
    332.47/497.49 = 214.93/x
  3. Step 3: Cross multiply
    332.47x = 497.49 × 214.93
  4. Step 4: Simplify right side
    332.47x = 106,925.53
  5. Step 5: Solve for x
    x = 106,925.53/332.47
  6. Step 6: Final answer
    x = 321.61

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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.