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Finding the Fourth Proportional to 564,749.01, 779,352.03 and 338,394.51

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Solution

The fourth proportional to 564,749.01, 779,352.03 and 338,394.51 is: 466,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,749.01 : 779,352.03 = 338,394.51 : x
  2. Step 2: Convert to fraction form
    564,749.01/779,352.03 = 338,394.51/x
  3. Step 3: Cross multiply
    564,749.01x = 779,352.03 × 338,394.51
  4. Step 4: Simplify right side
    564,749.01x = 263,728,448,309.36
  5. Step 5: Solve for x
    x = 263,728,448,309.36/564,749.01
  6. Step 6: Final answer
    x = 466,983.46

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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.