Home / 631,819.70-947,779.41-211,097.06

Finding the Fourth Proportional to 631,819.70, 947,779.41 and 211,097.06

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Solution

The fourth proportional to 631,819.70, 947,779.41 and 211,097.06 is: 316,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,819.70 : 947,779.41 = 211,097.06 : x
  2. Step 2: Convert to fraction form
    631,819.70/947,779.41 = 211,097.06/x
  3. Step 3: Cross multiply
    631,819.70x = 947,779.41 × 211,097.06
  4. Step 4: Simplify right side
    631,819.70x = 200,073,446,979.54
  5. Step 5: Solve for x
    x = 200,073,446,979.54/631,819.70
  6. Step 6: Final answer
    x = 316,662.25

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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.