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Finding the Fourth Proportional to 659,719.56, 909,943.56 and 605,447.03

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Solution

The fourth proportional to 659,719.56, 909,943.56 and 605,447.03 is: 835,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,719.56 : 909,943.56 = 605,447.03 : x
  2. Step 2: Convert to fraction form
    659,719.56/909,943.56 = 605,447.03/x
  3. Step 3: Cross multiply
    659,719.56x = 909,943.56 × 605,447.03
  4. Step 4: Simplify right side
    659,719.56x = 550,922,627,383.24
  5. Step 5: Solve for x
    x = 550,922,627,383.24/659,719.56
  6. Step 6: Final answer
    x = 835,086.09

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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.