Home / 511,168.04-705,383.10-281,724.62

Finding the Fourth Proportional to 511,168.04, 705,383.10 and 281,724.62

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Solution

The fourth proportional to 511,168.04, 705,383.10 and 281,724.62 is: 388,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,168.04 : 705,383.10 = 281,724.62 : x
  2. Step 2: Convert to fraction form
    511,168.04/705,383.10 = 281,724.62/x
  3. Step 3: Cross multiply
    511,168.04x = 705,383.10 × 281,724.62
  4. Step 4: Simplify right side
    511,168.04x = 198,723,785,801.92
  5. Step 5: Solve for x
    x = 198,723,785,801.92/511,168.04
  6. Step 6: Final answer
    x = 388,764.11

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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.