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Finding the Fourth Proportional to 577,666.39, 866,519.34 and 198,583.88

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Solution

The fourth proportional to 577,666.39, 866,519.34 and 198,583.88 is: 297,882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,666.39 : 866,519.34 = 198,583.88 : x
  2. Step 2: Convert to fraction form
    577,666.39/866,519.34 = 198,583.88/x
  3. Step 3: Cross multiply
    577,666.39x = 866,519.34 × 198,583.88
  4. Step 4: Simplify right side
    577,666.39x = 172,076,772,632.24
  5. Step 5: Solve for x
    x = 172,076,772,632.24/577,666.39
  6. Step 6: Final answer
    x = 297,882.61

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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.