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Finding the Fourth Proportional to 517,305.63, 775,991.25 and 162,333.66

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Solution

The fourth proportional to 517,305.63, 775,991.25 and 162,333.66 is: 243,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,305.63 : 775,991.25 = 162,333.66 : x
  2. Step 2: Convert to fraction form
    517,305.63/775,991.25 = 162,333.66/x
  3. Step 3: Cross multiply
    517,305.63x = 775,991.25 × 162,333.66
  4. Step 4: Simplify right side
    517,305.63x = 125,969,499,740.48
  5. Step 5: Solve for x
    x = 125,969,499,740.48/517,305.63
  6. Step 6: Final answer
    x = 243,510.78

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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.