Home / 853,571.17-1,279,252.98-638,652.85

Finding the Fourth Proportional to 853,571.17, 1,279,252.98 and 638,652.85

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Solution

The fourth proportional to 853,571.17, 1,279,252.98 and 638,652.85 is: 957,153.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,571.17 : 1,279,252.98 = 638,652.85 : x
  2. Step 2: Convert to fraction form
    853,571.17/1,279,252.98 = 638,652.85/x
  3. Step 3: Cross multiply
    853,571.17x = 1,279,252.98 × 638,652.85
  4. Step 4: Simplify right side
    853,571.17x = 816,998,561,547.99
  5. Step 5: Solve for x
    x = 816,998,561,547.99/853,571.17
  6. Step 6: Final answer
    x = 957,153.42

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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.