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Finding the Fourth Proportional to 577,959.40, 866,922.90 and 262,415.80

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Solution

The fourth proportional to 577,959.40, 866,922.90 and 262,415.80 is: 393,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,959.40 : 866,922.90 = 262,415.80 : x
  2. Step 2: Convert to fraction form
    577,959.40/866,922.90 = 262,415.80/x
  3. Step 3: Cross multiply
    577,959.40x = 866,922.90 × 262,415.80
  4. Step 4: Simplify right side
    577,959.40x = 227,494,266,341.82
  5. Step 5: Solve for x
    x = 227,494,266,341.82/577,959.40
  6. Step 6: Final answer
    x = 393,616.34

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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.