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Finding the Fourth Proportional to 487,889.49, 673,276.77 and 267,126.33

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Solution

The fourth proportional to 487,889.49, 673,276.77 and 267,126.33 is: 368,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,889.49 : 673,276.77 = 267,126.33 : x
  2. Step 2: Convert to fraction form
    487,889.49/673,276.77 = 267,126.33/x
  3. Step 3: Cross multiply
    487,889.49x = 673,276.77 × 267,126.33
  4. Step 4: Simplify right side
    487,889.49x = 179,849,952,644.35
  5. Step 5: Solve for x
    x = 179,849,952,644.35/487,889.49
  6. Step 6: Final answer
    x = 368,628.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.