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Finding the Fourth Proportional to 543,023.22, 749,360.62 and 301,300.58

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Solution

The fourth proportional to 543,023.22, 749,360.62 and 301,300.58 is: 415,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,023.22 : 749,360.62 = 301,300.58 : x
  2. Step 2: Convert to fraction form
    543,023.22/749,360.62 = 301,300.58/x
  3. Step 3: Cross multiply
    543,023.22x = 749,360.62 × 301,300.58
  4. Step 4: Simplify right side
    543,023.22x = 225,782,789,435.16
  5. Step 5: Solve for x
    x = 225,782,789,435.16/543,023.22
  6. Step 6: Final answer
    x = 415,788.46

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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.