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Finding the Fourth Proportional to 496,487.07, 685,292.81 and 292,656.24

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Solution

The fourth proportional to 496,487.07, 685,292.81 and 292,656.24 is: 403,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,487.07 : 685,292.81 = 292,656.24 : x
  2. Step 2: Convert to fraction form
    496,487.07/685,292.81 = 292,656.24/x
  3. Step 3: Cross multiply
    496,487.07x = 685,292.81 × 292,656.24
  4. Step 4: Simplify right side
    496,487.07x = 200,555,215,610.35
  5. Step 5: Solve for x
    x = 200,555,215,610.35/496,487.07
  6. Step 6: Final answer
    x = 403,948.52

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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.