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Finding the Fourth Proportional to 555,023.44, 765,932.03 and 313,308.10

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Solution

The fourth proportional to 555,023.44, 765,932.03 and 313,308.10 is: 432,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,023.44 : 765,932.03 = 313,308.10 : x
  2. Step 2: Convert to fraction form
    555,023.44/765,932.03 = 313,308.10/x
  3. Step 3: Cross multiply
    555,023.44x = 765,932.03 × 313,308.10
  4. Step 4: Simplify right side
    555,023.44x = 239,972,705,218.78
  5. Step 5: Solve for x
    x = 239,972,705,218.78/555,023.44
  6. Step 6: Final answer
    x = 432,365.00

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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.