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Finding the Fourth Proportional to 436,585.52, 654,878.44 and 196,418.96

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Solution

The fourth proportional to 436,585.52, 654,878.44 and 196,418.96 is: 294,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,585.52 : 654,878.44 = 196,418.96 : x
  2. Step 2: Convert to fraction form
    436,585.52/654,878.44 = 196,418.96/x
  3. Step 3: Cross multiply
    436,585.52x = 654,878.44 × 196,418.96
  4. Step 4: Simplify right side
    436,585.52x = 128,630,542,111.22
  5. Step 5: Solve for x
    x = 128,630,542,111.22/436,585.52
  6. Step 6: Final answer
    x = 294,628.51

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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.