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Finding the Fourth Proportional to 415,910.40, 623,865.60 and 363,422.40

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Solution

The fourth proportional to 415,910.40, 623,865.60 and 363,422.40 is: 545,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,910.40 : 623,865.60 = 363,422.40 : x
  2. Step 2: Convert to fraction form
    415,910.40/623,865.60 = 363,422.40/x
  3. Step 3: Cross multiply
    415,910.40x = 623,865.60 × 363,422.40
  4. Step 4: Simplify right side
    415,910.40x = 226,726,733,629.44
  5. Step 5: Solve for x
    x = 226,726,733,629.44/415,910.40
  6. Step 6: Final answer
    x = 545,133.60

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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.