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Finding the Fourth Proportional to 460,896, 636,036.84 and 248,928

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Solution

The fourth proportional to 460,896, 636,036.84 and 248,928 is: 343,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,896 : 636,036.84 = 248,928 : x
  2. Step 2: Convert to fraction form
    460,896/636,036.84 = 248,928/x
  3. Step 3: Cross multiply
    460,896x = 636,036.84 × 248,928
  4. Step 4: Simplify right side
    460,896x = 158,327,378,507.52
  5. Step 5: Solve for x
    x = 158,327,378,507.52/460,896
  6. Step 6: Final answer
    x = 343,520.83

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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.