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Finding the Fourth Proportional to 624,255.60, 936,383.40 and 499,839.60

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Solution

The fourth proportional to 624,255.60, 936,383.40 and 499,839.60 is: 749,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,255.60 : 936,383.40 = 499,839.60 : x
  2. Step 2: Convert to fraction form
    624,255.60/936,383.40 = 499,839.60/x
  3. Step 3: Cross multiply
    624,255.60x = 936,383.40 × 499,839.60
  4. Step 4: Simplify right side
    624,255.60x = 468,041,504,102.64
  5. Step 5: Solve for x
    x = 468,041,504,102.64/624,255.60
  6. Step 6: Final answer
    x = 749,759.40

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Double scale
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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.