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Finding the Fourth Proportional to 326,155.26, 488,675.18 and 255,050.44

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Solution

The fourth proportional to 326,155.26, 488,675.18 and 255,050.44 is: 382,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,155.26 : 488,675.18 = 255,050.44 : x
  2. Step 2: Convert to fraction form
    326,155.26/488,675.18 = 255,050.44/x
  3. Step 3: Cross multiply
    326,155.26x = 488,675.18 × 255,050.44
  4. Step 4: Simplify right side
    326,155.26x = 124,636,818,400.83
  5. Step 5: Solve for x
    x = 124,636,818,400.83/326,155.26
  6. Step 6: Final answer
    x = 382,139.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.