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Finding the Fourth Proportional to 577,654.39, 866,686.79 and 257,777.16

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Solution

The fourth proportional to 577,654.39, 866,686.79 and 257,777.16 is: 386,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,654.39 : 866,686.79 = 257,777.16 : x
  2. Step 2: Convert to fraction form
    577,654.39/866,686.79 = 257,777.16/x
  3. Step 3: Cross multiply
    577,654.39x = 866,686.79 × 257,777.16
  4. Step 4: Simplify right side
    577,654.39x = 223,412,053,713.40
  5. Step 5: Solve for x
    x = 223,412,053,713.40/577,654.39
  6. Step 6: Final answer
    x = 386,757.30

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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.