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Finding the Fourth Proportional to 442,628.88, 610,827.82 and 251,642.26

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Solution

The fourth proportional to 442,628.88, 610,827.82 and 251,642.26 is: 347,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,628.88 : 610,827.82 = 251,642.26 : x
  2. Step 2: Convert to fraction form
    442,628.88/610,827.82 = 251,642.26/x
  3. Step 3: Cross multiply
    442,628.88x = 610,827.82 × 251,642.26
  4. Step 4: Simplify right side
    442,628.88x = 153,710,093,095.67
  5. Step 5: Solve for x
    x = 153,710,093,095.67/442,628.88
  6. Step 6: Final answer
    x = 347,266.30

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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.