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Finding the Fourth Proportional to 468,991.20, 703,486.80 and 169,615.20

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Solution

The fourth proportional to 468,991.20, 703,486.80 and 169,615.20 is: 254,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,991.20 : 703,486.80 = 169,615.20 : x
  2. Step 2: Convert to fraction form
    468,991.20/703,486.80 = 169,615.20/x
  3. Step 3: Cross multiply
    468,991.20x = 703,486.80 × 169,615.20
  4. Step 4: Simplify right side
    468,991.20x = 119,322,054,279.36
  5. Step 5: Solve for x
    x = 119,322,054,279.36/468,991.20
  6. Step 6: Final answer
    x = 254,422.80

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Similar ratio
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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.