Home / 693,921.36-1,040,116.86-453,935.64

Finding the Fourth Proportional to 693,921.36, 1,040,116.86 and 453,935.64

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Solution

The fourth proportional to 693,921.36, 1,040,116.86 and 453,935.64 is: 680,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,921.36 : 1,040,116.86 = 453,935.64 : x
  2. Step 2: Convert to fraction form
    693,921.36/1,040,116.86 = 453,935.64/x
  3. Step 3: Cross multiply
    693,921.36x = 1,040,116.86 × 453,935.64
  4. Step 4: Simplify right side
    693,921.36x = 472,146,112,518.89
  5. Step 5: Solve for x
    x = 472,146,112,518.89/693,921.36
  6. Step 6: Final answer
    x = 680,402.91

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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.