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Finding the Fourth Proportional to 469,356.48, 647,707.83 and 265,447.56

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Solution

The fourth proportional to 469,356.48, 647,707.83 and 265,447.56 is: 366,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,356.48 : 647,707.83 = 265,447.56 : x
  2. Step 2: Convert to fraction form
    469,356.48/647,707.83 = 265,447.56/x
  3. Step 3: Cross multiply
    469,356.48x = 647,707.83 × 265,447.56
  4. Step 4: Simplify right side
    469,356.48x = 171,932,463,066.40
  5. Step 5: Solve for x
    x = 171,932,463,066.40/469,356.48
  6. Step 6: Final answer
    x = 366,315.31

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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.