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Finding the Fourth Proportional to 517,520.01, 713,977.16 and 381,879.54

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Solution

The fourth proportional to 517,520.01, 713,977.16 and 381,879.54 is: 526,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,520.01 : 713,977.16 = 381,879.54 : x
  2. Step 2: Convert to fraction form
    517,520.01/713,977.16 = 381,879.54/x
  3. Step 3: Cross multiply
    517,520.01x = 713,977.16 × 381,879.54
  4. Step 4: Simplify right side
    517,520.01x = 272,653,269,431.31
  5. Step 5: Solve for x
    x = 272,653,269,431.31/517,520.01
  6. Step 6: Final answer
    x = 526,845.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.