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Finding the Fourth Proportional to 543,856.40, 815,784.60 and 244,480.40

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Solution

The fourth proportional to 543,856.40, 815,784.60 and 244,480.40 is: 366,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,856.40 : 815,784.60 = 244,480.40 : x
  2. Step 2: Convert to fraction form
    543,856.40/815,784.60 = 244,480.40/x
  3. Step 3: Cross multiply
    543,856.40x = 815,784.60 × 244,480.40
  4. Step 4: Simplify right side
    543,856.40x = 199,443,345,321.84
  5. Step 5: Solve for x
    x = 199,443,345,321.84/543,856.40
  6. Step 6: Final answer
    x = 366,720.60

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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.