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Finding the Fourth Proportional to 501,029.20, 751,543.80 and 127,052.20

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Solution

The fourth proportional to 501,029.20, 751,543.80 and 127,052.20 is: 190,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,029.20 : 751,543.80 = 127,052.20 : x
  2. Step 2: Convert to fraction form
    501,029.20/751,543.80 = 127,052.20/x
  3. Step 3: Cross multiply
    501,029.20x = 751,543.80 × 127,052.20
  4. Step 4: Simplify right side
    501,029.20x = 95,485,293,186.36
  5. Step 5: Solve for x
    x = 95,485,293,186.36/501,029.20
  6. Step 6: Final answer
    x = 190,578.30

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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.