Home / 1,639,081.74-2,261,923.47-913,938.15

Finding the Fourth Proportional to 1,639,081.74, 2,261,923.47 and 913,938.15

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Solution

The fourth proportional to 1,639,081.74, 2,261,923.47 and 913,938.15 is: 1,261,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,081.74 : 2,261,923.47 = 913,938.15 : x
  2. Step 2: Convert to fraction form
    1,639,081.74/2,261,923.47 = 913,938.15/x
  3. Step 3: Cross multiply
    1,639,081.74x = 2,261,923.47 × 913,938.15
  4. Step 4: Simplify right side
    1,639,081.74x = 2,067,258,151,613.38
  5. Step 5: Solve for x
    x = 2,067,258,151,613.38/1,639,081.74
  6. Step 6: Final answer
    x = 1,261,229.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.