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Finding the Fourth Proportional to 533,324.40, 799,986.60 and 489,778.80

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Solution

The fourth proportional to 533,324.40, 799,986.60 and 489,778.80 is: 734,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,324.40 : 799,986.60 = 489,778.80 : x
  2. Step 2: Convert to fraction form
    533,324.40/799,986.60 = 489,778.80/x
  3. Step 3: Cross multiply
    533,324.40x = 799,986.60 × 489,778.80
  4. Step 4: Simplify right side
    533,324.40x = 391,816,476,964.08
  5. Step 5: Solve for x
    x = 391,816,476,964.08/533,324.40
  6. Step 6: Final answer
    x = 734,668.20

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Half scale
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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.