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Finding the Fourth Proportional to 338,779.08, 467,503.38 and 187,890.12

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Solution

The fourth proportional to 338,779.08, 467,503.38 and 187,890.12 is: 259,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,779.08 : 467,503.38 = 187,890.12 : x
  2. Step 2: Convert to fraction form
    338,779.08/467,503.38 = 187,890.12/x
  3. Step 3: Cross multiply
    338,779.08x = 467,503.38 × 187,890.12
  4. Step 4: Simplify right side
    338,779.08x = 87,839,266,168.61
  5. Step 5: Solve for x
    x = 87,839,266,168.61/338,779.08
  6. Step 6: Final answer
    x = 259,281.85

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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.