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Finding the Fourth Proportional to 893,720.80, 1,340,663.83 and 254,037.88

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Solution

The fourth proportional to 893,720.80, 1,340,663.83 and 254,037.88 is: 381,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,720.80 : 1,340,663.83 = 254,037.88 : x
  2. Step 2: Convert to fraction form
    893,720.80/1,340,663.83 = 254,037.88/x
  3. Step 3: Cross multiply
    893,720.80x = 1,340,663.83 × 254,037.88
  4. Step 4: Simplify right side
    893,720.80x = 340,579,398,206.62
  5. Step 5: Solve for x
    x = 340,579,398,206.62/893,720.80
  6. Step 6: Final answer
    x = 381,080.31

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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.