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Finding the Fourth Proportional to 395,617.56, 545,940.86 and 232,271.34

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Solution

The fourth proportional to 395,617.56, 545,940.86 and 232,271.34 is: 320,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,617.56 : 545,940.86 = 232,271.34 : x
  2. Step 2: Convert to fraction form
    395,617.56/545,940.86 = 232,271.34/x
  3. Step 3: Cross multiply
    395,617.56x = 545,940.86 × 232,271.34
  4. Step 4: Simplify right side
    395,617.56x = 126,806,415,112.95
  5. Step 5: Solve for x
    x = 126,806,415,112.95/395,617.56
  6. Step 6: Final answer
    x = 320,527.77

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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.