Home / 814,335.12-1,221,305.85-341,374.50

Finding the Fourth Proportional to 814,335.12, 1,221,305.85 and 341,374.50

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Solution

The fourth proportional to 814,335.12, 1,221,305.85 and 341,374.50 is: 511,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,335.12 : 1,221,305.85 = 341,374.50 : x
  2. Step 2: Convert to fraction form
    814,335.12/1,221,305.85 = 341,374.50/x
  3. Step 3: Cross multiply
    814,335.12x = 1,221,305.85 × 341,374.50
  4. Step 4: Simplify right side
    814,335.12x = 416,922,673,890.83
  5. Step 5: Solve for x
    x = 416,922,673,890.83/814,335.12
  6. Step 6: Final answer
    x = 511,979.24

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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.