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Finding the Fourth Proportional to 500,573.86, 690,786.43 and 271,125.44

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Solution

The fourth proportional to 500,573.86, 690,786.43 and 271,125.44 is: 374,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,573.86 : 690,786.43 = 271,125.44 : x
  2. Step 2: Convert to fraction form
    500,573.86/690,786.43 = 271,125.44/x
  3. Step 3: Cross multiply
    500,573.86x = 690,786.43 × 271,125.44
  4. Step 4: Simplify right side
    500,573.86x = 187,289,774,779.78
  5. Step 5: Solve for x
    x = 187,289,774,779.78/500,573.86
  6. Step 6: Final answer
    x = 374,150.13

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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.