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Finding the Fourth Proportional to 624,155.60, 936,233.40 and 400,206.80

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Solution

The fourth proportional to 624,155.60, 936,233.40 and 400,206.80 is: 600,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,155.60 : 936,233.40 = 400,206.80 : x
  2. Step 2: Convert to fraction form
    624,155.60/936,233.40 = 400,206.80/x
  3. Step 3: Cross multiply
    624,155.60x = 936,233.40 × 400,206.80
  4. Step 4: Simplify right side
    624,155.60x = 374,686,973,067.12
  5. Step 5: Solve for x
    x = 374,686,973,067.12/624,155.60
  6. Step 6: Final answer
    x = 600,310.20

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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.