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Finding the Fourth Proportional to 356,902.56, 492,521.28 and 193,556.48

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Solution

The fourth proportional to 356,902.56, 492,521.28 and 193,556.48 is: 267,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,902.56 : 492,521.28 = 193,556.48 : x
  2. Step 2: Convert to fraction form
    356,902.56/492,521.28 = 193,556.48/x
  3. Step 3: Cross multiply
    356,902.56x = 492,521.28 × 193,556.48
  4. Step 4: Simplify right side
    356,902.56x = 95,330,685,281.89
  5. Step 5: Solve for x
    x = 95,330,685,281.89/356,902.56
  6. Step 6: Final answer
    x = 267,105.64

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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.