Home / 340,616.20-470,058.66-189,715.72

Finding the Fourth Proportional to 340,616.20, 470,058.66 and 189,715.72

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Solution

The fourth proportional to 340,616.20, 470,058.66 and 189,715.72 is: 261,812.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,616.20 : 470,058.66 = 189,715.72 : x
  2. Step 2: Convert to fraction form
    340,616.20/470,058.66 = 189,715.72/x
  3. Step 3: Cross multiply
    340,616.20x = 470,058.66 × 189,715.72
  4. Step 4: Simplify right side
    340,616.20x = 89,177,517,124.14
  5. Step 5: Solve for x
    x = 89,177,517,124.14/340,616.20
  6. Step 6: Final answer
    x = 261,812.32

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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.