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Finding the Fourth Proportional to 657,913.94, 986,906.16 and 208,668.92

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Solution

The fourth proportional to 657,913.94, 986,906.16 and 208,668.92 is: 313,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,913.94 : 986,906.16 = 208,668.92 : x
  2. Step 2: Convert to fraction form
    657,913.94/986,906.16 = 208,668.92/x
  3. Step 3: Cross multiply
    657,913.94x = 986,906.16 × 208,668.92
  4. Step 4: Simplify right side
    657,913.94x = 205,936,642,548.55
  5. Step 5: Solve for x
    x = 205,936,642,548.55/657,913.94
  6. Step 6: Final answer
    x = 313,014.56

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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.