Home / 812,570.85-1,120,975.56-526,183.20

Finding the Fourth Proportional to 812,570.85, 1,120,975.56 and 526,183.20

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Solution

The fourth proportional to 812,570.85, 1,120,975.56 and 526,183.20 is: 725,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,570.85 : 1,120,975.56 = 526,183.20 : x
  2. Step 2: Convert to fraction form
    812,570.85/1,120,975.56 = 526,183.20/x
  3. Step 3: Cross multiply
    812,570.85x = 1,120,975.56 × 526,183.20
  4. Step 4: Simplify right side
    812,570.85x = 589,838,507,282.59
  5. Step 5: Solve for x
    x = 589,838,507,282.59/812,570.85
  6. Step 6: Final answer
    x = 725,891.79

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Double scale
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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.