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Finding the Fourth Proportional to 286,511.75, 395,379.11 and 159,187.64

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Solution

The fourth proportional to 286,511.75, 395,379.11 and 159,187.64 is: 219,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.75 : 395,379.11 = 159,187.64 : x
  2. Step 2: Convert to fraction form
    286,511.75/395,379.11 = 159,187.64/x
  3. Step 3: Cross multiply
    286,511.75x = 395,379.11 × 159,187.64
  4. Step 4: Simplify right side
    286,511.75x = 62,939,468,812.62
  5. Step 5: Solve for x
    x = 62,939,468,812.62/286,511.75
  6. Step 6: Final answer
    x = 219,675.00

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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.