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Finding the Fourth Proportional to 662,975.60, 994,463.40 and 411,033.20

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Solution

The fourth proportional to 662,975.60, 994,463.40 and 411,033.20 is: 616,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,975.60 : 994,463.40 = 411,033.20 : x
  2. Step 2: Convert to fraction form
    662,975.60/994,463.40 = 411,033.20/x
  3. Step 3: Cross multiply
    662,975.60x = 994,463.40 × 411,033.20
  4. Step 4: Simplify right side
    662,975.60x = 408,757,473,584.88
  5. Step 5: Solve for x
    x = 408,757,473,584.88/662,975.60
  6. Step 6: Final answer
    x = 616,549.80

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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.