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Finding the Fourth Proportional to 325,242.90, 487,173.15 and 269,946.90

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Solution

The fourth proportional to 325,242.90, 487,173.15 and 269,946.90 is: 404,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,242.90 : 487,173.15 = 269,946.90 : x
  2. Step 2: Convert to fraction form
    325,242.90/487,173.15 = 269,946.90/x
  3. Step 3: Cross multiply
    325,242.90x = 487,173.15 × 269,946.90
  4. Step 4: Simplify right side
    325,242.90x = 131,510,881,605.74
  5. Step 5: Solve for x
    x = 131,510,881,605.74/325,242.90
  6. Step 6: Final answer
    x = 404,346.66

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1.5x scale

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.