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Finding the Fourth Proportional to 511,325.87, 766,988.79 and 195,782.76

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Solution

The fourth proportional to 511,325.87, 766,988.79 and 195,782.76 is: 293,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,325.87 : 766,988.79 = 195,782.76 : x
  2. Step 2: Convert to fraction form
    511,325.87/766,988.79 = 195,782.76/x
  3. Step 3: Cross multiply
    511,325.87x = 766,988.79 × 195,782.76
  4. Step 4: Simplify right side
    511,325.87x = 150,163,182,195.26
  5. Step 5: Solve for x
    x = 150,163,182,195.26/511,325.87
  6. Step 6: Final answer
    x = 293,674.14

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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.