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Finding the Fourth Proportional to 259,902.40, 389,853.60 and 62,910.40

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Solution

The fourth proportional to 259,902.40, 389,853.60 and 62,910.40 is: 94,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,902.40 : 389,853.60 = 62,910.40 : x
  2. Step 2: Convert to fraction form
    259,902.40/389,853.60 = 62,910.40/x
  3. Step 3: Cross multiply
    259,902.40x = 389,853.60 × 62,910.40
  4. Step 4: Simplify right side
    259,902.40x = 24,525,845,917.44
  5. Step 5: Solve for x
    x = 24,525,845,917.44/259,902.40
  6. Step 6: Final answer
    x = 94,365.60

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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.