Home / 892,718.77-1,339,151.07-419,145.79

Finding the Fourth Proportional to 892,718.77, 1,339,151.07 and 419,145.79

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Solution

The fourth proportional to 892,718.77, 1,339,151.07 and 419,145.79 is: 628,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,718.77 : 1,339,151.07 = 419,145.79 : x
  2. Step 2: Convert to fraction form
    892,718.77/1,339,151.07 = 419,145.79/x
  3. Step 3: Cross multiply
    892,718.77x = 1,339,151.07 × 419,145.79
  4. Step 4: Simplify right side
    892,718.77x = 561,299,533,164.50
  5. Step 5: Solve for x
    x = 561,299,533,164.50/892,718.77
  6. Step 6: Final answer
    x = 628,752.92

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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.