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Finding the Fourth Proportional to 567,663.64, 783,347.72 and 322,616.36

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Solution

The fourth proportional to 567,663.64, 783,347.72 and 322,616.36 is: 445,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,663.64 : 783,347.72 = 322,616.36 : x
  2. Step 2: Convert to fraction form
    567,663.64/783,347.72 = 322,616.36/x
  3. Step 3: Cross multiply
    567,663.64x = 783,347.72 × 322,616.36
  4. Step 4: Simplify right side
    567,663.64x = 252,720,790,040.70
  5. Step 5: Solve for x
    x = 252,720,790,040.70/567,663.64
  6. Step 6: Final answer
    x = 445,194.61

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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.