Home / 631,890.05-947,835.07-211,165.92

Finding the Fourth Proportional to 631,890.05, 947,835.07 and 211,165.92

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Solution

The fourth proportional to 631,890.05, 947,835.07 and 211,165.92 is: 316,748.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,890.05 : 947,835.07 = 211,165.92 : x
  2. Step 2: Convert to fraction form
    631,890.05/947,835.07 = 211,165.92/x
  3. Step 3: Cross multiply
    631,890.05x = 947,835.07 × 211,165.92
  4. Step 4: Simplify right side
    631,890.05x = 200,150,464,564.81
  5. Step 5: Solve for x
    x = 200,150,464,564.81/631,890.05
  6. Step 6: Final answer
    x = 316,748.88

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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.