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Finding the Fourth Proportional to 564,285.22, 778,713.55 and 322,573.19

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Solution

The fourth proportional to 564,285.22, 778,713.55 and 322,573.19 is: 445,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,285.22 : 778,713.55 = 322,573.19 : x
  2. Step 2: Convert to fraction form
    564,285.22/778,713.55 = 322,573.19/x
  3. Step 3: Cross multiply
    564,285.22x = 778,713.55 × 322,573.19
  4. Step 4: Simplify right side
    564,285.22x = 251,192,109,219.72
  5. Step 5: Solve for x
    x = 251,192,109,219.72/564,285.22
  6. Step 6: Final answer
    x = 445,150.97

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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.