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Finding the Fourth Proportional to 511,389.28, 767,194.64 and 195,846.16

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Solution

The fourth proportional to 511,389.28, 767,194.64 and 195,846.16 is: 293,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,389.28 : 767,194.64 = 195,846.16 : x
  2. Step 2: Convert to fraction form
    511,389.28/767,194.64 = 195,846.16/x
  3. Step 3: Cross multiply
    511,389.28x = 767,194.64 × 195,846.16
  4. Step 4: Simplify right side
    511,389.28x = 150,252,124,216.58
  5. Step 5: Solve for x
    x = 150,252,124,216.58/511,389.28
  6. Step 6: Final answer
    x = 293,811.64

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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.