Home / 476,514.49-657,611.46-285,523.78

Finding the Fourth Proportional to 476,514.49, 657,611.46 and 285,523.78

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Solution

The fourth proportional to 476,514.49, 657,611.46 and 285,523.78 is: 394,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,514.49 : 657,611.46 = 285,523.78 : x
  2. Step 2: Convert to fraction form
    476,514.49/657,611.46 = 285,523.78/x
  3. Step 3: Cross multiply
    476,514.49x = 657,611.46 × 285,523.78
  4. Step 4: Simplify right side
    476,514.49x = 187,763,709,830.52
  5. Step 5: Solve for x
    x = 187,763,709,830.52/476,514.49
  6. Step 6: Final answer
    x = 394,035.68

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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.