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Finding the Fourth Proportional to 533,328.72, 799,993.86 and 217,785.64

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Solution

The fourth proportional to 533,328.72, 799,993.86 and 217,785.64 is: 326,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,328.72 : 799,993.86 = 217,785.64 : x
  2. Step 2: Convert to fraction form
    533,328.72/799,993.86 = 217,785.64/x
  3. Step 3: Cross multiply
    533,328.72x = 799,993.86 × 217,785.64
  4. Step 4: Simplify right side
    533,328.72x = 174,227,174,796.17
  5. Step 5: Solve for x
    x = 174,227,174,796.17/533,328.72
  6. Step 6: Final answer
    x = 326,678.78

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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.