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Finding the Fourth Proportional to 617,085.80, 925,628.70 and 196,404.20

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Solution

The fourth proportional to 617,085.80, 925,628.70 and 196,404.20 is: 294,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,085.80 : 925,628.70 = 196,404.20 : x
  2. Step 2: Convert to fraction form
    617,085.80/925,628.70 = 196,404.20/x
  3. Step 3: Cross multiply
    617,085.80x = 925,628.70 × 196,404.20
  4. Step 4: Simplify right side
    617,085.80x = 181,797,364,320.54
  5. Step 5: Solve for x
    x = 181,797,364,320.54/617,085.80
  6. Step 6: Final answer
    x = 294,606.30

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Similar ratio
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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.