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Finding the Fourth Proportional to 564,273.43, 778,697.21 and 322,561.19

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Solution

The fourth proportional to 564,273.43, 778,697.21 and 322,561.19 is: 445,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,273.43 : 778,697.21 = 322,561.19 : x
  2. Step 2: Convert to fraction form
    564,273.43/778,697.21 = 322,561.19/x
  3. Step 3: Cross multiply
    564,273.43x = 778,697.21 × 322,561.19
  4. Step 4: Simplify right side
    564,273.43x = 251,177,501,460.43
  5. Step 5: Solve for x
    x = 251,177,501,460.43/564,273.43
  6. Step 6: Final answer
    x = 445,134.38

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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.