Home / 317,453.23-438,105.14-209,836.63

Finding the Fourth Proportional to 317,453.23, 438,105.14 and 209,836.63

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Solution

The fourth proportional to 317,453.23, 438,105.14 and 209,836.63 is: 289,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,453.23 : 438,105.14 = 209,836.63 : x
  2. Step 2: Convert to fraction form
    317,453.23/438,105.14 = 209,836.63/x
  3. Step 3: Cross multiply
    317,453.23x = 438,105.14 × 209,836.63
  4. Step 4: Simplify right side
    317,453.23x = 91,930,504,805.72
  5. Step 5: Solve for x
    x = 91,930,504,805.72/317,453.23
  6. Step 6: Final answer
    x = 289,587.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.