Home / 783,777.86-1,175,664.09-215,165.06

Finding the Fourth Proportional to 783,777.86, 1,175,664.09 and 215,165.06

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Solution

The fourth proportional to 783,777.86, 1,175,664.09 and 215,165.06 is: 322,746.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,777.86 : 1,175,664.09 = 215,165.06 : x
  2. Step 2: Convert to fraction form
    783,777.86/1,175,664.09 = 215,165.06/x
  3. Step 3: Cross multiply
    783,777.86x = 1,175,664.09 × 215,165.06
  4. Step 4: Simplify right side
    783,777.86x = 252,961,834,464.70
  5. Step 5: Solve for x
    x = 252,961,834,464.70/783,777.86
  6. Step 6: Final answer
    x = 322,746.85

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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.