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Finding the Fourth Proportional to 577,828.37, 866,860.79 and 198,699.86

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Solution

The fourth proportional to 577,828.37, 866,860.79 and 198,699.86 is: 298,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,828.37 : 866,860.79 = 198,699.86 : x
  2. Step 2: Convert to fraction form
    577,828.37/866,860.79 = 198,699.86/x
  3. Step 3: Cross multiply
    577,828.37x = 866,860.79 × 198,699.86
  4. Step 4: Simplify right side
    577,828.37x = 172,245,112,284.69
  5. Step 5: Solve for x
    x = 172,245,112,284.69/577,828.37
  6. Step 6: Final answer
    x = 298,090.44

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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.