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Finding the Fourth Proportional to 564,564.64, 779,091.60 and 322,886.56

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Solution

The fourth proportional to 564,564.64, 779,091.60 and 322,886.56 is: 445,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,564.64 : 779,091.60 = 322,886.56 : x
  2. Step 2: Convert to fraction form
    564,564.64/779,091.60 = 322,886.56/x
  3. Step 3: Cross multiply
    564,564.64x = 779,091.60 × 322,886.56
  4. Step 4: Simplify right side
    564,564.64x = 251,558,206,648.90
  5. Step 5: Solve for x
    x = 251,558,206,648.90/564,564.64
  6. Step 6: Final answer
    x = 445,579.10

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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.