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Finding the Fourth Proportional to 502,620.53, 753,506.87 and 218,096.64

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Solution

The fourth proportional to 502,620.53, 753,506.87 and 218,096.64 is: 326,961.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,620.53 : 753,506.87 = 218,096.64 : x
  2. Step 2: Convert to fraction form
    502,620.53/753,506.87 = 218,096.64/x
  3. Step 3: Cross multiply
    502,620.53x = 753,506.87 × 218,096.64
  4. Step 4: Simplify right side
    502,620.53x = 164,337,315,473.43
  5. Step 5: Solve for x
    x = 164,337,315,473.43/502,620.53
  6. Step 6: Final answer
    x = 326,961.01

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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.