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Finding the Fourth Proportional to 571,560.79, 857,166.09 and 395,201.11

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Solution

The fourth proportional to 571,560.79, 857,166.09 and 395,201.11 is: 592,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,560.79 : 857,166.09 = 395,201.11 : x
  2. Step 2: Convert to fraction form
    571,560.79/857,166.09 = 395,201.11/x
  3. Step 3: Cross multiply
    571,560.79x = 857,166.09 × 395,201.11
  4. Step 4: Simplify right side
    571,560.79x = 338,752,990,222.36
  5. Step 5: Solve for x
    x = 338,752,990,222.36/571,560.79
  6. Step 6: Final answer
    x = 592,680.60

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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.