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Finding the Fourth Proportional to 363,356.25, 500,911.95 and 255,591.81

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Solution

The fourth proportional to 363,356.25, 500,911.95 and 255,591.81 is: 352,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,356.25 : 500,911.95 = 255,591.81 : x
  2. Step 2: Convert to fraction form
    363,356.25/500,911.95 = 255,591.81/x
  3. Step 3: Cross multiply
    363,356.25x = 500,911.95 × 255,591.81
  4. Step 4: Simplify right side
    363,356.25x = 128,028,991,951.13
  5. Step 5: Solve for x
    x = 128,028,991,951.13/363,356.25
  6. Step 6: Final answer
    x = 352,351.15

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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.