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Finding the Fourth Proportional to 571,289.22, 788,351.94 and 329,649.48

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Solution

The fourth proportional to 571,289.22, 788,351.94 and 329,649.48 is: 454,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,289.22 : 788,351.94 = 329,649.48 : x
  2. Step 2: Convert to fraction form
    571,289.22/788,351.94 = 329,649.48/x
  3. Step 3: Cross multiply
    571,289.22x = 788,351.94 × 329,649.48
  4. Step 4: Simplify right side
    571,289.22x = 259,879,807,077.99
  5. Step 5: Solve for x
    x = 259,879,807,077.99/571,289.22
  6. Step 6: Final answer
    x = 454,900.60

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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.