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Finding the Fourth Proportional to 440,412.48, 607,769.46 and 239,208.48

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Solution

The fourth proportional to 440,412.48, 607,769.46 and 239,208.48 is: 330,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,412.48 : 607,769.46 = 239,208.48 : x
  2. Step 2: Convert to fraction form
    440,412.48/607,769.46 = 239,208.48/x
  3. Step 3: Cross multiply
    440,412.48x = 607,769.46 × 239,208.48
  4. Step 4: Simplify right side
    440,412.48x = 145,383,608,717.02
  5. Step 5: Solve for x
    x = 145,383,608,717.02/440,412.48
  6. Step 6: Final answer
    x = 330,107.83

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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.