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Finding the Fourth Proportional to 780,035, 1,170,052.52 and 189,059

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Solution

The fourth proportional to 780,035, 1,170,052.52 and 189,059 is: 283,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,035 : 1,170,052.52 = 189,059 : x
  2. Step 2: Convert to fraction form
    780,035/1,170,052.52 = 189,059/x
  3. Step 3: Cross multiply
    780,035x = 1,170,052.52 × 189,059
  4. Step 4: Simplify right side
    780,035x = 221,208,959,378.68
  5. Step 5: Solve for x
    x = 221,208,959,378.68/780,035
  6. Step 6: Final answer
    x = 283,588.50

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Double scale
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Similar ratio
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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.