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Finding the Fourth Proportional to 502,054.84, 692,662.49 and 320,872.83

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Solution

The fourth proportional to 502,054.84, 692,662.49 and 320,872.83 is: 442,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,054.84 : 692,662.49 = 320,872.83 : x
  2. Step 2: Convert to fraction form
    502,054.84/692,662.49 = 320,872.83/x
  3. Step 3: Cross multiply
    502,054.84x = 692,662.49 × 320,872.83
  4. Step 4: Simplify right side
    502,054.84x = 222,256,570,402.57
  5. Step 5: Solve for x
    x = 222,256,570,402.57/502,054.84
  6. Step 6: Final answer
    x = 442,693.81

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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.