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Finding the Fourth Proportional to 613,959.98, 921,087.44 and 234,874.51

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Solution

The fourth proportional to 613,959.98, 921,087.44 and 234,874.51 is: 352,368.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,959.98 : 921,087.44 = 234,874.51 : x
  2. Step 2: Convert to fraction form
    613,959.98/921,087.44 = 234,874.51/x
  3. Step 3: Cross multiply
    613,959.98x = 921,087.44 × 234,874.51
  4. Step 4: Simplify right side
    613,959.98x = 216,339,959,962.78
  5. Step 5: Solve for x
    x = 216,339,959,962.78/613,959.98
  6. Step 6: Final answer
    x = 352,368.18

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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.