Home / 862,100.28-1,189,698.41-480,127.05

Finding the Fourth Proportional to 862,100.28, 1,189,698.41 and 480,127.05

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Solution

The fourth proportional to 862,100.28, 1,189,698.41 and 480,127.05 is: 662,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,100.28 : 1,189,698.41 = 480,127.05 : x
  2. Step 2: Convert to fraction form
    862,100.28/1,189,698.41 = 480,127.05/x
  3. Step 3: Cross multiply
    862,100.28x = 1,189,698.41 × 480,127.05
  4. Step 4: Simplify right side
    862,100.28x = 571,206,389,183.31
  5. Step 5: Solve for x
    x = 571,206,389,183.31/862,100.28
  6. Step 6: Final answer
    x = 662,575.34

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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.