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Finding the Fourth Proportional to 497,054.32, 685,954.38 and 282,214.38

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Solution

The fourth proportional to 497,054.32, 685,954.38 and 282,214.38 is: 389,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,054.32 : 685,954.38 = 282,214.38 : x
  2. Step 2: Convert to fraction form
    497,054.32/685,954.38 = 282,214.38/x
  3. Step 3: Cross multiply
    497,054.32x = 685,954.38 × 282,214.38
  4. Step 4: Simplify right side
    497,054.32x = 193,586,190,059.98
  5. Step 5: Solve for x
    x = 193,586,190,059.98/497,054.32
  6. Step 6: Final answer
    x = 389,466.87

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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.