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Finding the Fourth Proportional to 624,163.60, 936,245.40 and 519,101.20

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Solution

The fourth proportional to 624,163.60, 936,245.40 and 519,101.20 is: 778,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,163.60 : 936,245.40 = 519,101.20 : x
  2. Step 2: Convert to fraction form
    624,163.60/936,245.40 = 519,101.20/x
  3. Step 3: Cross multiply
    624,163.60x = 936,245.40 × 519,101.20
  4. Step 4: Simplify right side
    624,163.60x = 486,006,110,634.48
  5. Step 5: Solve for x
    x = 486,006,110,634.48/624,163.60
  6. Step 6: Final answer
    x = 778,651.80

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Similar ratio
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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.