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Finding the Fourth Proportional to 325,530.90, 488,296.35 and 269,543.70

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Solution

The fourth proportional to 325,530.90, 488,296.35 and 269,543.70 is: 404,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,530.90 : 488,296.35 = 269,543.70 : x
  2. Step 2: Convert to fraction form
    325,530.90/488,296.35 = 269,543.70/x
  3. Step 3: Cross multiply
    325,530.90x = 488,296.35 × 269,543.70
  4. Step 4: Simplify right side
    325,530.90x = 131,617,204,875.50
  5. Step 5: Solve for x
    x = 131,617,204,875.50/325,530.90
  6. Step 6: Final answer
    x = 404,315.55

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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.