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Finding the Fourth Proportional to 631,902.44, 947,853.66 and 211,178.32

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Solution

The fourth proportional to 631,902.44, 947,853.66 and 211,178.32 is: 316,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,902.44 : 947,853.66 = 211,178.32 : x
  2. Step 2: Convert to fraction form
    631,902.44/947,853.66 = 211,178.32/x
  3. Step 3: Cross multiply
    631,902.44x = 947,853.66 × 211,178.32
  4. Step 4: Simplify right side
    631,902.44x = 200,166,143,524.65
  5. Step 5: Solve for x
    x = 200,166,143,524.65/631,902.44
  6. Step 6: Final answer
    x = 316,767.48

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Half scale
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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.