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Finding the Fourth Proportional to 447,673.20, 670,991.40 and 181,258.80

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Solution

The fourth proportional to 447,673.20, 670,991.40 and 181,258.80 is: 271,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,673.20 : 670,991.40 = 181,258.80 : x
  2. Step 2: Convert to fraction form
    447,673.20/670,991.40 = 181,258.80/x
  3. Step 3: Cross multiply
    447,673.20x = 670,991.40 × 181,258.80
  4. Step 4: Simplify right side
    447,673.20x = 121,623,095,974.32
  5. Step 5: Solve for x
    x = 121,623,095,974.32/447,673.20
  6. Step 6: Final answer
    x = 271,678.30

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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.