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Finding the Fourth Proportional to 577,659.66, 866,914.74 and 274,054.38

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Solution

The fourth proportional to 577,659.66, 866,914.74 and 274,054.38 is: 411,283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,659.66 : 866,914.74 = 274,054.38 : x
  2. Step 2: Convert to fraction form
    577,659.66/866,914.74 = 274,054.38/x
  3. Step 3: Cross multiply
    577,659.66x = 866,914.74 × 274,054.38
  4. Step 4: Simplify right side
    577,659.66x = 237,581,781,583.56
  5. Step 5: Solve for x
    x = 237,581,781,583.56/577,659.66
  6. Step 6: Final answer
    x = 411,283.32

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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.