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Finding the Fourth Proportional to 624,169.60, 936,254.40 and 519,107.20

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Solution

The fourth proportional to 624,169.60, 936,254.40 and 519,107.20 is: 778,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,169.60 : 936,254.40 = 519,107.20 : x
  2. Step 2: Convert to fraction form
    624,169.60/936,254.40 = 519,107.20/x
  3. Step 3: Cross multiply
    624,169.60x = 936,254.40 × 519,107.20
  4. Step 4: Simplify right side
    624,169.60x = 486,016,400,071.68
  5. Step 5: Solve for x
    x = 486,016,400,071.68/624,169.60
  6. Step 6: Final answer
    x = 778,660.80

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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.