Home / 814,085.68-1,221,314.52-281,606.32

Finding the Fourth Proportional to 814,085.68, 1,221,314.52 and 281,606.32

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Solution

The fourth proportional to 814,085.68, 1,221,314.52 and 281,606.32 is: 422,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,085.68 : 1,221,314.52 = 281,606.32 : x
  2. Step 2: Convert to fraction form
    814,085.68/1,221,314.52 = 281,606.32/x
  3. Step 3: Cross multiply
    814,085.68x = 1,221,314.52 × 281,606.32
  4. Step 4: Simplify right side
    814,085.68x = 343,929,887,539.77
  5. Step 5: Solve for x
    x = 343,929,887,539.77/814,085.68
  6. Step 6: Final answer
    x = 422,473.82

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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.