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Finding the Fourth Proportional to 455,058.66, 682,376.81 and 265,573.56

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Solution

The fourth proportional to 455,058.66, 682,376.81 and 265,573.56 is: 398,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,058.66 : 682,376.81 = 265,573.56 : x
  2. Step 2: Convert to fraction form
    455,058.66/682,376.81 = 265,573.56/x
  3. Step 3: Cross multiply
    455,058.66x = 682,376.81 × 265,573.56
  4. Step 4: Simplify right side
    455,058.66x = 181,221,238,005.00
  5. Step 5: Solve for x
    x = 181,221,238,005.00/455,058.66
  6. Step 6: Final answer
    x = 398,237.09

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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.