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Finding the Fourth Proportional to 320,313.66, 441,994.47 and 177,054.22

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Solution

The fourth proportional to 320,313.66, 441,994.47 and 177,054.22 is: 244,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,313.66 : 441,994.47 = 177,054.22 : x
  2. Step 2: Convert to fraction form
    320,313.66/441,994.47 = 177,054.22/x
  3. Step 3: Cross multiply
    320,313.66x = 441,994.47 × 177,054.22
  4. Step 4: Simplify right side
    320,313.66x = 78,256,987,014.63
  5. Step 5: Solve for x
    x = 78,256,987,014.63/320,313.66
  6. Step 6: Final answer
    x = 244,313.61

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1.5x scale

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.