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Finding the Fourth Proportional to 444,009.33, 612,323.91 and 290,991.78

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Solution

The fourth proportional to 444,009.33, 612,323.91 and 290,991.78 is: 401,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,009.33 : 612,323.91 = 290,991.78 : x
  2. Step 2: Convert to fraction form
    444,009.33/612,323.91 = 290,991.78/x
  3. Step 3: Cross multiply
    444,009.33x = 612,323.91 × 290,991.78
  4. Step 4: Simplify right side
    444,009.33x = 178,181,224,507.46
  5. Step 5: Solve for x
    x = 178,181,224,507.46/444,009.33
  6. Step 6: Final answer
    x = 401,300.63

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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.