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Finding the Fourth Proportional to 555,231.76, 766,346.31 and 361,297.69

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Solution

The fourth proportional to 555,231.76, 766,346.31 and 361,297.69 is: 498,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,231.76 : 766,346.31 = 361,297.69 : x
  2. Step 2: Convert to fraction form
    555,231.76/766,346.31 = 361,297.69/x
  3. Step 3: Cross multiply
    555,231.76x = 766,346.31 × 361,297.69
  4. Step 4: Simplify right side
    555,231.76x = 276,879,151,543.02
  5. Step 5: Solve for x
    x = 276,879,151,543.02/555,231.76
  6. Step 6: Final answer
    x = 498,673.12

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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.