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Finding the Fourth Proportional to 483,126.88, 667,030.80 and 313,843.36

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Solution

The fourth proportional to 483,126.88, 667,030.80 and 313,843.36 is: 433,308.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,126.88 : 667,030.80 = 313,843.36 : x
  2. Step 2: Convert to fraction form
    483,126.88/667,030.80 = 313,843.36/x
  3. Step 3: Cross multiply
    483,126.88x = 667,030.80 × 313,843.36
  4. Step 4: Simplify right side
    483,126.88x = 209,343,187,495.49
  5. Step 5: Solve for x
    x = 209,343,187,495.49/483,126.88
  6. Step 6: Final answer
    x = 433,308.92

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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.