Home / 840,120.23-1,260,401.76-440,653.74

Finding the Fourth Proportional to 840,120.23, 1,260,401.76 and 440,653.74

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Solution

The fourth proportional to 840,120.23, 1,260,401.76 and 440,653.74 is: 661,096.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,120.23 : 1,260,401.76 = 440,653.74 : x
  2. Step 2: Convert to fraction form
    840,120.23/1,260,401.76 = 440,653.74/x
  3. Step 3: Cross multiply
    840,120.23x = 1,260,401.76 × 440,653.74
  4. Step 4: Simplify right side
    840,120.23x = 555,400,749,446.58
  5. Step 5: Solve for x
    x = 555,400,749,446.58/840,120.23
  6. Step 6: Final answer
    x = 661,096.75

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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.