Home / 340,645.24-470,084.34-189,739

Finding the Fourth Proportional to 340,645.24, 470,084.34 and 189,739

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Solution

The fourth proportional to 340,645.24, 470,084.34 and 189,739 is: 261,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,645.24 : 470,084.34 = 189,739 : x
  2. Step 2: Convert to fraction form
    340,645.24/470,084.34 = 189,739/x
  3. Step 3: Cross multiply
    340,645.24x = 470,084.34 × 189,739
  4. Step 4: Simplify right side
    340,645.24x = 89,193,332,587.26
  5. Step 5: Solve for x
    x = 89,193,332,587.26/340,645.24
  6. Step 6: Final answer
    x = 261,836.43

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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.