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Finding the Fourth Proportional to 567,316.44, 782,895.11 and 312,667.56

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Solution

The fourth proportional to 567,316.44, 782,895.11 and 312,667.56 is: 431,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,316.44 : 782,895.11 = 312,667.56 : x
  2. Step 2: Convert to fraction form
    567,316.44/782,895.11 = 312,667.56/x
  3. Step 3: Cross multiply
    567,316.44x = 782,895.11 × 312,667.56
  4. Step 4: Simplify right side
    567,316.44x = 244,785,902,216.29
  5. Step 5: Solve for x
    x = 244,785,902,216.29/567,316.44
  6. Step 6: Final answer
    x = 431,480.36

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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.