Home / 769,111.68-1,153,857.84-319,697.76

Finding the Fourth Proportional to 769,111.68, 1,153,857.84 and 319,697.76

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Solution

The fourth proportional to 769,111.68, 1,153,857.84 and 319,697.76 is: 479,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,111.68 : 1,153,857.84 = 319,697.76 : x
  2. Step 2: Convert to fraction form
    769,111.68/1,153,857.84 = 319,697.76/x
  3. Step 3: Cross multiply
    769,111.68x = 1,153,857.84 × 319,697.76
  4. Step 4: Simplify right side
    769,111.68x = 368,885,766,806.44
  5. Step 5: Solve for x
    x = 368,885,766,806.44/769,111.68
  6. Step 6: Final answer
    x = 479,625.75

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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.