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Finding the Fourth Proportional to 339,230.78, 511,284.50 and 292,410.96

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Solution

The fourth proportional to 339,230.78, 511,284.50 and 292,410.96 is: 440,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,230.78 : 511,284.50 = 292,410.96 : x
  2. Step 2: Convert to fraction form
    339,230.78/511,284.50 = 292,410.96/x
  3. Step 3: Cross multiply
    339,230.78x = 511,284.50 × 292,410.96
  4. Step 4: Simplify right side
    339,230.78x = 149,505,191,478.12
  5. Step 5: Solve for x
    x = 149,505,191,478.12/339,230.78
  6. Step 6: Final answer
    x = 440,718.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.