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Finding the Fourth Proportional to 504,530.61, 696,257.67 and 275,086.01

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Solution

The fourth proportional to 504,530.61, 696,257.67 and 275,086.01 is: 379,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,530.61 : 696,257.67 = 275,086.01 : x
  2. Step 2: Convert to fraction form
    504,530.61/696,257.67 = 275,086.01/x
  3. Step 3: Cross multiply
    504,530.61x = 696,257.67 × 275,086.01
  4. Step 4: Simplify right side
    504,530.61x = 191,530,744,372.20
  5. Step 5: Solve for x
    x = 191,530,744,372.20/504,530.61
  6. Step 6: Final answer
    x = 379,621.65

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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.