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Finding the Fourth Proportional to 496,856.48, 685,432.67 and 292,768.07

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Solution

The fourth proportional to 496,856.48, 685,432.67 and 292,768.07 is: 403,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,856.48 : 685,432.67 = 292,768.07 : x
  2. Step 2: Convert to fraction form
    496,856.48/685,432.67 = 292,768.07/x
  3. Step 3: Cross multiply
    496,856.48x = 685,432.67 × 292,768.07
  4. Step 4: Simplify right side
    496,856.48x = 200,672,795,019.84
  5. Step 5: Solve for x
    x = 200,672,795,019.84/496,856.48
  6. Step 6: Final answer
    x = 403,884.83

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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.