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Finding the Fourth Proportional to 363,558.54, 501,711.66 and 202,405.80

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Solution

The fourth proportional to 363,558.54, 501,711.66 and 202,405.80 is: 279,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,558.54 : 501,711.66 = 202,405.80 : x
  2. Step 2: Convert to fraction form
    363,558.54/501,711.66 = 202,405.80/x
  3. Step 3: Cross multiply
    363,558.54x = 501,711.66 × 202,405.80
  4. Step 4: Simplify right side
    363,558.54x = 101,549,349,911.63
  5. Step 5: Solve for x
    x = 101,549,349,911.63/363,558.54
  6. Step 6: Final answer
    x = 279,320.49

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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.