Home / 631,895.40-947,843.12-211,171.26

Finding the Fourth Proportional to 631,895.40, 947,843.12 and 211,171.26

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Solution

The fourth proportional to 631,895.40, 947,843.12 and 211,171.26 is: 316,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,895.40 : 947,843.12 = 211,171.26 : x
  2. Step 2: Convert to fraction form
    631,895.40/947,843.12 = 211,171.26/x
  3. Step 3: Cross multiply
    631,895.40x = 947,843.12 × 211,171.26
  4. Step 4: Simplify right side
    631,895.40x = 200,157,225,932.73
  5. Step 5: Solve for x
    x = 200,157,225,932.73/631,895.40
  6. Step 6: Final answer
    x = 316,756.90

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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.