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Finding the Fourth Proportional to 571,363.22, 788,464.16 and 313,231.34

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Solution

The fourth proportional to 571,363.22, 788,464.16 and 313,231.34 is: 432,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,363.22 : 788,464.16 = 313,231.34 : x
  2. Step 2: Convert to fraction form
    571,363.22/788,464.16 = 313,231.34/x
  3. Step 3: Cross multiply
    571,363.22x = 788,464.16 × 313,231.34
  4. Step 4: Simplify right side
    571,363.22x = 246,971,685,378.77
  5. Step 5: Solve for x
    x = 246,971,685,378.77/571,363.22
  6. Step 6: Final answer
    x = 432,249.88

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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.