Home / 386,856.34-580,367.43-116,961.40

Finding the Fourth Proportional to 386,856.34, 580,367.43 and 116,961.40

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Solution

The fourth proportional to 386,856.34, 580,367.43 and 116,961.40 is: 175,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,856.34 : 580,367.43 = 116,961.40 : x
  2. Step 2: Convert to fraction form
    386,856.34/580,367.43 = 116,961.40/x
  3. Step 3: Cross multiply
    386,856.34x = 580,367.43 × 116,961.40
  4. Step 4: Simplify right side
    386,856.34x = 67,880,587,852.66
  5. Step 5: Solve for x
    x = 67,880,587,852.66/386,856.34
  6. Step 6: Final answer
    x = 175,467.17

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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.