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Finding the Fourth Proportional to 395,935.80, 593,903.70 and 111,625.80

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Solution

The fourth proportional to 395,935.80, 593,903.70 and 111,625.80 is: 167,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,935.80 : 593,903.70 = 111,625.80 : x
  2. Step 2: Convert to fraction form
    395,935.80/593,903.70 = 111,625.80/x
  3. Step 3: Cross multiply
    395,935.80x = 593,903.70 × 111,625.80
  4. Step 4: Simplify right side
    395,935.80x = 66,294,975,635.46
  5. Step 5: Solve for x
    x = 66,294,975,635.46/395,935.80
  6. Step 6: Final answer
    x = 167,438.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.