Home / 769,794.56-1,154,570.55-257,455.80

Finding the Fourth Proportional to 769,794.56, 1,154,570.55 and 257,455.80

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Solution

The fourth proportional to 769,794.56, 1,154,570.55 and 257,455.80 is: 386,143.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,794.56 : 1,154,570.55 = 257,455.80 : x
  2. Step 2: Convert to fraction form
    769,794.56/1,154,570.55 = 257,455.80/x
  3. Step 3: Cross multiply
    769,794.56x = 1,154,570.55 × 257,455.80
  4. Step 4: Simplify right side
    769,794.56x = 297,250,884,606.69
  5. Step 5: Solve for x
    x = 297,250,884,606.69/769,794.56
  6. Step 6: Final answer
    x = 386,143.14

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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.