Home / 693,919.72-957,503.46-392,003.56

Finding the Fourth Proportional to 693,919.72, 957,503.46 and 392,003.56

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Solution

The fourth proportional to 693,919.72, 957,503.46 and 392,003.56 is: 540,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,919.72 : 957,503.46 = 392,003.56 : x
  2. Step 2: Convert to fraction form
    693,919.72/957,503.46 = 392,003.56/x
  3. Step 3: Cross multiply
    693,919.72x = 957,503.46 × 392,003.56
  4. Step 4: Simplify right side
    693,919.72x = 375,344,765,032.32
  5. Step 5: Solve for x
    x = 375,344,765,032.32/693,919.72
  6. Step 6: Final answer
    x = 540,905.17

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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.