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Finding the Fourth Proportional to 504,699.72, 696,486.30 and 275,257.56

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Solution

The fourth proportional to 504,699.72, 696,486.30 and 275,257.56 is: 379,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,699.72 : 696,486.30 = 275,257.56 : x
  2. Step 2: Convert to fraction form
    504,699.72/696,486.30 = 275,257.56/x
  3. Step 3: Cross multiply
    504,699.72x = 696,486.30 × 275,257.56
  4. Step 4: Simplify right side
    504,699.72x = 191,713,119,511.43
  5. Step 5: Solve for x
    x = 191,713,119,511.43/504,699.72
  6. Step 6: Final answer
    x = 379,855.81

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1.5x scale

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.