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Finding the Fourth Proportional to 440,447.01, 660,768.93 and 140,945.57

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Solution

The fourth proportional to 440,447.01, 660,768.93 and 140,945.57 is: 211,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,447.01 : 660,768.93 = 140,945.57 : x
  2. Step 2: Convert to fraction form
    440,447.01/660,768.93 = 140,945.57/x
  3. Step 3: Cross multiply
    440,447.01x = 660,768.93 × 140,945.57
  4. Step 4: Simplify right side
    440,447.01x = 93,132,450,173.30
  5. Step 5: Solve for x
    x = 93,132,450,173.30/440,447.01
  6. Step 6: Final answer
    x = 211,449.84

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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.