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Finding the Fourth Proportional to 415,487.57, 573,245.39 and 254,174.45

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Solution

The fourth proportional to 415,487.57, 573,245.39 and 254,174.45 is: 350,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,487.57 : 573,245.39 = 254,174.45 : x
  2. Step 2: Convert to fraction form
    415,487.57/573,245.39 = 254,174.45/x
  3. Step 3: Cross multiply
    415,487.57x = 573,245.39 × 254,174.45
  4. Step 4: Simplify right side
    415,487.57x = 145,704,330,447.41
  5. Step 5: Solve for x
    x = 145,704,330,447.41/415,487.57
  6. Step 6: Final answer
    x = 350,682.77

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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.