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Finding the Fourth Proportional to 531,925.80, 797,924.70 and 216,388.20

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Solution

The fourth proportional to 531,925.80, 797,924.70 and 216,388.20 is: 324,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,925.80 : 797,924.70 = 216,388.20 : x
  2. Step 2: Convert to fraction form
    531,925.80/797,924.70 = 216,388.20/x
  3. Step 3: Cross multiply
    531,925.80x = 797,924.70 × 216,388.20
  4. Step 4: Simplify right side
    531,925.80x = 172,661,489,568.54
  5. Step 5: Solve for x
    x = 172,661,489,568.54/531,925.80
  6. Step 6: Final answer
    x = 324,596.94

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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.