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Finding the Fourth Proportional to 496,720.01, 685,454.56 and 281,847.26

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Solution

The fourth proportional to 496,720.01, 685,454.56 and 281,847.26 is: 388,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,720.01 : 685,454.56 = 281,847.26 : x
  2. Step 2: Convert to fraction form
    496,720.01/685,454.56 = 281,847.26/x
  3. Step 3: Cross multiply
    496,720.01x = 685,454.56 × 281,847.26
  4. Step 4: Simplify right side
    496,720.01x = 193,193,485,458.62
  5. Step 5: Solve for x
    x = 193,193,485,458.62/496,720.01
  6. Step 6: Final answer
    x = 388,938.40

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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.