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Finding the Fourth Proportional to 304,800.48, 456,979.20 and 127,358.28

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Solution

The fourth proportional to 304,800.48, 456,979.20 and 127,358.28 is: 190,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,800.48 : 456,979.20 = 127,358.28 : x
  2. Step 2: Convert to fraction form
    304,800.48/456,979.20 = 127,358.28/x
  3. Step 3: Cross multiply
    304,800.48x = 456,979.20 × 127,358.28
  4. Step 4: Simplify right side
    304,800.48x = 58,200,084,907.78
  5. Step 5: Solve for x
    x = 58,200,084,907.78/304,800.48
  6. Step 6: Final answer
    x = 190,944.86

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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.