Home / 857,154.26-1,285,534.62-511,035.67

Finding the Fourth Proportional to 857,154.26, 1,285,534.62 and 511,035.67

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Solution

The fourth proportional to 857,154.26, 1,285,534.62 and 511,035.67 is: 766,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,154.26 : 1,285,534.62 = 511,035.67 : x
  2. Step 2: Convert to fraction form
    857,154.26/1,285,534.62 = 511,035.67/x
  3. Step 3: Cross multiply
    857,154.26x = 1,285,534.62 × 511,035.67
  4. Step 4: Simplify right side
    857,154.26x = 656,954,045,839.90
  5. Step 5: Solve for x
    x = 656,954,045,839.90/857,154.26
  6. Step 6: Final answer
    x = 766,436.20

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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.