Home / 613,138.14-919,845.59-186,712.11

Finding the Fourth Proportional to 613,138.14, 919,845.59 and 186,712.11

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Solution

The fourth proportional to 613,138.14, 919,845.59 and 186,712.11 is: 280,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,138.14 : 919,845.59 = 186,712.11 : x
  2. Step 2: Convert to fraction form
    613,138.14/919,845.59 = 186,712.11/x
  3. Step 3: Cross multiply
    613,138.14x = 919,845.59 × 186,712.11
  4. Step 4: Simplify right side
    613,138.14x = 171,746,310,049.53
  5. Step 5: Solve for x
    x = 171,746,310,049.53/613,138.14
  6. Step 6: Final answer
    x = 280,110.30

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1.5x scale

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.