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Finding the Fourth Proportional to 577,291.88, 866,078.65 and 406,845.82

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Solution

The fourth proportional to 577,291.88, 866,078.65 and 406,845.82 is: 610,367.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,291.88 : 866,078.65 = 406,845.82 : x
  2. Step 2: Convert to fraction form
    577,291.88/866,078.65 = 406,845.82/x
  3. Step 3: Cross multiply
    577,291.88x = 866,078.65 × 406,845.82
  4. Step 4: Simplify right side
    577,291.88x = 352,360,476,711.95
  5. Step 5: Solve for x
    x = 352,360,476,711.95/577,291.88
  6. Step 6: Final answer
    x = 610,367.97

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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.