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Finding the Fourth Proportional to 571,704.62, 857,686.31 and 192,615.05

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Solution

The fourth proportional to 571,704.62, 857,686.31 and 192,615.05 is: 288,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,704.62 : 857,686.31 = 192,615.05 : x
  2. Step 2: Convert to fraction form
    571,704.62/857,686.31 = 192,615.05/x
  3. Step 3: Cross multiply
    571,704.62x = 857,686.31 × 192,615.05
  4. Step 4: Simplify right side
    571,704.62x = 165,203,291,484.97
  5. Step 5: Solve for x
    x = 165,203,291,484.97/571,704.62
  6. Step 6: Final answer
    x = 288,966.16

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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.