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Finding the Fourth Proportional to 508,197.96, 701,345.12 and 281,843.46

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Solution

The fourth proportional to 508,197.96, 701,345.12 and 281,843.46 is: 388,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,197.96 : 701,345.12 = 281,843.46 : x
  2. Step 2: Convert to fraction form
    508,197.96/701,345.12 = 281,843.46/x
  3. Step 3: Cross multiply
    508,197.96x = 701,345.12 × 281,843.46
  4. Step 4: Simplify right side
    508,197.96x = 197,669,533,865.70
  5. Step 5: Solve for x
    x = 197,669,533,865.70/508,197.96
  6. Step 6: Final answer
    x = 388,961.68

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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.