Home / 915,986.20-1,373,957.70-251,138.20

Finding the Fourth Proportional to 915,986.20, 1,373,957.70 and 251,138.20

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Solution

The fourth proportional to 915,986.20, 1,373,957.70 and 251,138.20 is: 376,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,986.20 : 1,373,957.70 = 251,138.20 : x
  2. Step 2: Convert to fraction form
    915,986.20/1,373,957.70 = 251,138.20/x
  3. Step 3: Cross multiply
    915,986.20x = 1,373,957.70 × 251,138.20
  4. Step 4: Simplify right side
    915,986.20x = 345,053,263,654.14
  5. Step 5: Solve for x
    x = 345,053,263,654.14/915,986.20
  6. Step 6: Final answer
    x = 376,701.38

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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.