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Finding the Fourth Proportional to 541,779.90, 747,661.76 and 326,878.44

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Solution

The fourth proportional to 541,779.90, 747,661.76 and 326,878.44 is: 451,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,779.90 : 747,661.76 = 326,878.44 : x
  2. Step 2: Convert to fraction form
    541,779.90/747,661.76 = 326,878.44/x
  3. Step 3: Cross multiply
    541,779.90x = 747,661.76 × 326,878.44
  4. Step 4: Simplify right side
    541,779.90x = 244,394,509,756.45
  5. Step 5: Solve for x
    x = 244,394,509,756.45/541,779.90
  6. Step 6: Final answer
    x = 451,095.56

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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.