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Finding the Fourth Proportional to 381,779.60, 526,797.17 and 220,603.37

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Solution

The fourth proportional to 381,779.60, 526,797.17 and 220,603.37 is: 304,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,779.60 : 526,797.17 = 220,603.37 : x
  2. Step 2: Convert to fraction form
    381,779.60/526,797.17 = 220,603.37/x
  3. Step 3: Cross multiply
    381,779.60x = 526,797.17 × 220,603.37
  4. Step 4: Simplify right side
    381,779.60x = 116,213,228,098.72
  5. Step 5: Solve for x
    x = 116,213,228,098.72/381,779.60
  6. Step 6: Final answer
    x = 304,398.74

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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.