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Finding the Fourth Proportional to 441,416, 609,111.96 and 247,779.38

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Solution

The fourth proportional to 441,416, 609,111.96 and 247,779.38 is: 341,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,416 : 609,111.96 = 247,779.38 : x
  2. Step 2: Convert to fraction form
    441,416/609,111.96 = 247,779.38/x
  3. Step 3: Cross multiply
    441,416x = 609,111.96 × 247,779.38
  4. Step 4: Simplify right side
    441,416x = 150,925,383,799.39
  5. Step 5: Solve for x
    x = 150,925,383,799.39/441,416
  6. Step 6: Final answer
    x = 341,911.90

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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.