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Finding the Fourth Proportional to 371,994.33, 513,392.31 and 210,832.08

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Solution

The fourth proportional to 371,994.33, 513,392.31 and 210,832.08 is: 290,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,994.33 : 513,392.31 = 210,832.08 : x
  2. Step 2: Convert to fraction form
    371,994.33/513,392.31 = 210,832.08/x
  3. Step 3: Cross multiply
    371,994.33x = 513,392.31 × 210,832.08
  4. Step 4: Simplify right side
    371,994.33x = 108,239,569,100.39
  5. Step 5: Solve for x
    x = 108,239,569,100.39/371,994.33
  6. Step 6: Final answer
    x = 290,971.02

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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.