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Finding the Fourth Proportional to 511,199.55, 705,452.22 and 278,626.23

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Solution

The fourth proportional to 511,199.55, 705,452.22 and 278,626.23 is: 384,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,199.55 : 705,452.22 = 278,626.23 : x
  2. Step 2: Convert to fraction form
    511,199.55/705,452.22 = 278,626.23/x
  3. Step 3: Cross multiply
    511,199.55x = 705,452.22 × 278,626.23
  4. Step 4: Simplify right side
    511,199.55x = 196,557,490,903.13
  5. Step 5: Solve for x
    x = 196,557,490,903.13/511,199.55
  6. Step 6: Final answer
    x = 384,502.47

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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.