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Finding the Fourth Proportional to 395,890.80, 593,836.20 and 372,562.80

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Solution

The fourth proportional to 395,890.80, 593,836.20 and 372,562.80 is: 558,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,890.80 : 593,836.20 = 372,562.80 : x
  2. Step 2: Convert to fraction form
    395,890.80/593,836.20 = 372,562.80/x
  3. Step 3: Cross multiply
    395,890.80x = 593,836.20 × 372,562.80
  4. Step 4: Simplify right side
    395,890.80x = 221,241,277,413.36
  5. Step 5: Solve for x
    x = 221,241,277,413.36/395,890.80
  6. Step 6: Final answer
    x = 558,844.20

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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.