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Finding the Fourth Proportional to 517,404.75, 776,232.08 and 162,418.77

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Solution

The fourth proportional to 517,404.75, 776,232.08 and 162,418.77 is: 243,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,404.75 : 776,232.08 = 162,418.77 : x
  2. Step 2: Convert to fraction form
    517,404.75/776,232.08 = 162,418.77/x
  3. Step 3: Cross multiply
    517,404.75x = 776,232.08 × 162,418.77
  4. Step 4: Simplify right side
    517,404.75x = 126,074,659,465.12
  5. Step 5: Solve for x
    x = 126,074,659,465.12/517,404.75
  6. Step 6: Final answer
    x = 243,667.38

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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.