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Finding the Fourth Proportional to 324,843.90, 486,574.65 and 269,547.90

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Solution

The fourth proportional to 324,843.90, 486,574.65 and 269,547.90 is: 403,748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,843.90 : 486,574.65 = 269,547.90 : x
  2. Step 2: Convert to fraction form
    324,843.90/486,574.65 = 269,547.90/x
  3. Step 3: Cross multiply
    324,843.90x = 486,574.65 × 269,547.90
  4. Step 4: Simplify right side
    324,843.90x = 131,155,175,100.74
  5. Step 5: Solve for x
    x = 131,155,175,100.74/324,843.90
  6. Step 6: Final answer
    x = 403,748.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.