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Finding the Fourth Proportional to 347,378.28, 521,067.40 and 98,060.28

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Solution

The fourth proportional to 347,378.28, 521,067.40 and 98,060.28 is: 147,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,378.28 : 521,067.40 = 98,060.28 : x
  2. Step 2: Convert to fraction form
    347,378.28/521,067.40 = 98,060.28/x
  3. Step 3: Cross multiply
    347,378.28x = 521,067.40 × 98,060.28
  4. Step 4: Simplify right side
    347,378.28x = 51,096,015,142.87
  5. Step 5: Solve for x
    x = 51,096,015,142.87/347,378.28
  6. Step 6: Final answer
    x = 147,090.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.