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Finding the Fourth Proportional to 427,896.36, 590,455.98 and 255,780.18

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Solution

The fourth proportional to 427,896.36, 590,455.98 and 255,780.18 is: 352,952.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,896.36 : 590,455.98 = 255,780.18 : x
  2. Step 2: Convert to fraction form
    427,896.36/590,455.98 = 255,780.18/x
  3. Step 3: Cross multiply
    427,896.36x = 590,455.98 × 255,780.18
  4. Step 4: Simplify right side
    427,896.36x = 151,026,936,846.48
  5. Step 5: Solve for x
    x = 151,026,936,846.48/427,896.36
  6. Step 6: Final answer
    x = 352,952.14

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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.