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Finding the Fourth Proportional to 355,215.33, 490,204.22 and 194,080.37

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Solution

The fourth proportional to 355,215.33, 490,204.22 and 194,080.37 is: 267,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,215.33 : 490,204.22 = 194,080.37 : x
  2. Step 2: Convert to fraction form
    355,215.33/490,204.22 = 194,080.37/x
  3. Step 3: Cross multiply
    355,215.33x = 490,204.22 × 194,080.37
  4. Step 4: Simplify right side
    355,215.33x = 95,139,012,971.74
  5. Step 5: Solve for x
    x = 95,139,012,971.74/355,215.33
  6. Step 6: Final answer
    x = 267,834.76

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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.