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Finding the Fourth Proportional to 563,027.63, 776,993.22 and 317,992.73

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Solution

The fourth proportional to 563,027.63, 776,993.22 and 317,992.73 is: 438,838.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,027.63 : 776,993.22 = 317,992.73 : x
  2. Step 2: Convert to fraction form
    563,027.63/776,993.22 = 317,992.73/x
  3. Step 3: Cross multiply
    563,027.63x = 776,993.22 × 317,992.73
  4. Step 4: Simplify right side
    563,027.63x = 247,078,191,334.32
  5. Step 5: Solve for x
    x = 247,078,191,334.32/563,027.63
  6. Step 6: Final answer
    x = 438,838.49

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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.