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Finding the Fourth Proportional to 564,689.56, 779,049.30 and 322,842.22

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Solution

The fourth proportional to 564,689.56, 779,049.30 and 322,842.22 is: 445,395.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,689.56 : 779,049.30 = 322,842.22 : x
  2. Step 2: Convert to fraction form
    564,689.56/779,049.30 = 322,842.22/x
  3. Step 3: Cross multiply
    564,689.56x = 779,049.30 × 322,842.22
  4. Step 4: Simplify right side
    564,689.56x = 251,510,005,501.45
  5. Step 5: Solve for x
    x = 251,510,005,501.45/564,689.56
  6. Step 6: Final answer
    x = 445,395.18

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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.