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Finding the Fourth Proportional to 591,131.20, 886,696.80 and 164,666.20

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Solution

The fourth proportional to 591,131.20, 886,696.80 and 164,666.20 is: 246,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,131.20 : 886,696.80 = 164,666.20 : x
  2. Step 2: Convert to fraction form
    591,131.20/886,696.80 = 164,666.20/x
  3. Step 3: Cross multiply
    591,131.20x = 886,696.80 × 164,666.20
  4. Step 4: Simplify right side
    591,131.20x = 146,008,992,608.16
  5. Step 5: Solve for x
    x = 146,008,992,608.16/591,131.20
  6. Step 6: Final answer
    x = 246,999.30

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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.