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Finding the Fourth Proportional to 501,049.70, 751,574.55 and 127,072.70

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Solution

The fourth proportional to 501,049.70, 751,574.55 and 127,072.70 is: 190,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,049.70 : 751,574.55 = 127,072.70 : x
  2. Step 2: Convert to fraction form
    501,049.70/751,574.55 = 127,072.70/x
  3. Step 3: Cross multiply
    501,049.70x = 751,574.55 × 127,072.70
  4. Step 4: Simplify right side
    501,049.70x = 95,504,607,319.79
  5. Step 5: Solve for x
    x = 95,504,607,319.79/501,049.70
  6. Step 6: Final answer
    x = 190,609.05

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Double scale
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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.