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Finding the Fourth Proportional to 469,992.48, 648,590.44 and 255,132.69

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Solution

The fourth proportional to 469,992.48, 648,590.44 and 255,132.69 is: 352,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,992.48 : 648,590.44 = 255,132.69 : x
  2. Step 2: Convert to fraction form
    469,992.48/648,590.44 = 255,132.69/x
  3. Step 3: Cross multiply
    469,992.48x = 648,590.44 × 255,132.69
  4. Step 4: Simplify right side
    469,992.48x = 165,476,621,073.81
  5. Step 5: Solve for x
    x = 165,476,621,073.81/469,992.48
  6. Step 6: Final answer
    x = 352,083.55

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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.