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Finding the Fourth Proportional to 659,932.57, 910,236.39 and 605,659.60

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Solution

The fourth proportional to 659,932.57, 910,236.39 and 605,659.60 is: 835,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,932.57 : 910,236.39 = 605,659.60 : x
  2. Step 2: Convert to fraction form
    659,932.57/910,236.39 = 605,659.60/x
  3. Step 3: Cross multiply
    659,932.57x = 910,236.39 × 605,659.60
  4. Step 4: Simplify right side
    659,932.57x = 551,293,409,299.46
  5. Step 5: Solve for x
    x = 551,293,409,299.46/659,932.57
  6. Step 6: Final answer
    x = 835,378.40

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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.