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Finding the Fourth Proportional to 531,689.40, 797,684.76 and 216,372.60

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Solution

The fourth proportional to 531,689.40, 797,684.76 and 216,372.60 is: 324,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,689.40 : 797,684.76 = 216,372.60 : x
  2. Step 2: Convert to fraction form
    531,689.40/797,684.76 = 216,372.60/x
  3. Step 3: Cross multiply
    531,689.40x = 797,684.76 × 216,372.60
  4. Step 4: Simplify right side
    531,689.40x = 172,597,125,501.58
  5. Step 5: Solve for x
    x = 172,597,125,501.58/531,689.40
  6. Step 6: Final answer
    x = 324,620.21

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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.