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Finding the Fourth Proportional to 355,112.58, 490,052.46 and 193,967.76

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Solution

The fourth proportional to 355,112.58, 490,052.46 and 193,967.76 is: 267,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,112.58 : 490,052.46 = 193,967.76 : x
  2. Step 2: Convert to fraction form
    355,112.58/490,052.46 = 193,967.76/x
  3. Step 3: Cross multiply
    355,112.58x = 490,052.46 × 193,967.76
  4. Step 4: Simplify right side
    355,112.58x = 95,054,377,948.69
  5. Step 5: Solve for x
    x = 95,054,377,948.69/355,112.58
  6. Step 6: Final answer
    x = 267,673.92

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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.