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Finding the Fourth Proportional to 285,530.70, 393,884.97 and 193,618.91

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Solution

The fourth proportional to 285,530.70, 393,884.97 and 193,618.91 is: 267,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,530.70 : 393,884.97 = 193,618.91 : x
  2. Step 2: Convert to fraction form
    285,530.70/393,884.97 = 193,618.91/x
  3. Step 3: Cross multiply
    285,530.70x = 393,884.97 × 193,618.91
  4. Step 4: Simplify right side
    285,530.70x = 76,263,576,587.36
  5. Step 5: Solve for x
    x = 76,263,576,587.36/285,530.70
  6. Step 6: Final answer
    x = 267,094.14

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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.