Home / 811,600.30-1,215,067.65-496,672.30

Finding the Fourth Proportional to 811,600.30, 1,215,067.65 and 496,672.30

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Solution

The fourth proportional to 811,600.30, 1,215,067.65 and 496,672.30 is: 743,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,600.30 : 1,215,067.65 = 496,672.30 : x
  2. Step 2: Convert to fraction form
    811,600.30/1,215,067.65 = 496,672.30/x
  3. Step 3: Cross multiply
    811,600.30x = 1,215,067.65 × 496,672.30
  4. Step 4: Simplify right side
    811,600.30x = 603,490,444,381.10
  5. Step 5: Solve for x
    x = 603,490,444,381.10/811,600.30
  6. Step 6: Final answer
    x = 743,580.85

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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.