Home / 818,367.81-1,226,764.36-419,196.57

Finding the Fourth Proportional to 818,367.81, 1,226,764.36 and 419,196.57

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Solution

The fourth proportional to 818,367.81, 1,226,764.36 and 419,196.57 is: 628,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,367.81 : 1,226,764.36 = 419,196.57 : x
  2. Step 2: Convert to fraction form
    818,367.81/1,226,764.36 = 419,196.57/x
  3. Step 3: Cross multiply
    818,367.81x = 1,226,764.36 × 419,196.57
  4. Step 4: Simplify right side
    818,367.81x = 514,255,411,910.25
  5. Step 5: Solve for x
    x = 514,255,411,910.25/818,367.81
  6. Step 6: Final answer
    x = 628,391.54

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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.