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Finding the Fourth Proportional to 511,774.86, 768,327.54 and 393,529.26

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Solution

The fourth proportional to 511,774.86, 768,327.54 and 393,529.26 is: 590,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,774.86 : 768,327.54 = 393,529.26 : x
  2. Step 2: Convert to fraction form
    511,774.86/768,327.54 = 393,529.26/x
  3. Step 3: Cross multiply
    511,774.86x = 768,327.54 × 393,529.26
  4. Step 4: Simplify right side
    511,774.86x = 302,359,368,253.82
  5. Step 5: Solve for x
    x = 302,359,368,253.82/511,774.86
  6. Step 6: Final answer
    x = 590,805.43

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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.