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Finding the Fourth Proportional to 445,584.40, 668,376.60 and 424,848.40

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Solution

The fourth proportional to 445,584.40, 668,376.60 and 424,848.40 is: 637,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,584.40 : 668,376.60 = 424,848.40 : x
  2. Step 2: Convert to fraction form
    445,584.40/668,376.60 = 424,848.40/x
  3. Step 3: Cross multiply
    445,584.40x = 668,376.60 × 424,848.40
  4. Step 4: Simplify right side
    445,584.40x = 283,958,729,107.44
  5. Step 5: Solve for x
    x = 283,958,729,107.44/445,584.40
  6. Step 6: Final answer
    x = 637,272.60

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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.