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Finding the Fourth Proportional to 441,409.20, 662,113.80 and 254,785.20

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Solution

The fourth proportional to 441,409.20, 662,113.80 and 254,785.20 is: 382,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,409.20 : 662,113.80 = 254,785.20 : x
  2. Step 2: Convert to fraction form
    441,409.20/662,113.80 = 254,785.20/x
  3. Step 3: Cross multiply
    441,409.20x = 662,113.80 × 254,785.20
  4. Step 4: Simplify right side
    441,409.20x = 168,696,796,955.76
  5. Step 5: Solve for x
    x = 168,696,796,955.76/441,409.20
  6. Step 6: Final answer
    x = 382,177.80

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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.