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Finding the Fourth Proportional to 407,618.40, 611,573.40 and 171,033.60

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Solution

The fourth proportional to 407,618.40, 611,573.40 and 171,033.60 is: 256,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,618.40 : 611,573.40 = 171,033.60 : x
  2. Step 2: Convert to fraction form
    407,618.40/611,573.40 = 171,033.60/x
  3. Step 3: Cross multiply
    407,618.40x = 611,573.40 × 171,033.60
  4. Step 4: Simplify right side
    407,618.40x = 104,599,600,266.24
  5. Step 5: Solve for x
    x = 104,599,600,266.24/407,618.40
  6. Step 6: Final answer
    x = 256,611.58

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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.