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Finding the Fourth Proportional to 413,425.40, 619,992.30 and 147,194.60

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Solution

The fourth proportional to 413,425.40, 619,992.30 and 147,194.60 is: 220,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,425.40 : 619,992.30 = 147,194.60 : x
  2. Step 2: Convert to fraction form
    413,425.40/619,992.30 = 147,194.60/x
  3. Step 3: Cross multiply
    413,425.40x = 619,992.30 × 147,194.60
  4. Step 4: Simplify right side
    413,425.40x = 91,259,518,601.58
  5. Step 5: Solve for x
    x = 91,259,518,601.58/413,425.40
  6. Step 6: Final answer
    x = 220,739.99

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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.