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Finding the Fourth Proportional to 406,797.66, 609,772.86 and 136,725.30

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Solution

The fourth proportional to 406,797.66, 609,772.86 and 136,725.30 is: 204,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,797.66 : 609,772.86 = 136,725.30 : x
  2. Step 2: Convert to fraction form
    406,797.66/609,772.86 = 136,725.30/x
  3. Step 3: Cross multiply
    406,797.66x = 609,772.86 × 136,725.30
  4. Step 4: Simplify right side
    406,797.66x = 83,371,377,215.36
  5. Step 5: Solve for x
    x = 83,371,377,215.36/406,797.66
  6. Step 6: Final answer
    x = 204,945.57

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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.