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Finding the Fourth Proportional to 646,599.39, 969,899.10 and 197,322.60

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Solution

The fourth proportional to 646,599.39, 969,899.10 and 197,322.60 is: 295,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,599.39 : 969,899.10 = 197,322.60 : x
  2. Step 2: Convert to fraction form
    646,599.39/969,899.10 = 197,322.60/x
  3. Step 3: Cross multiply
    646,599.39x = 969,899.10 × 197,322.60
  4. Step 4: Simplify right side
    646,599.39x = 191,383,012,149.66
  5. Step 5: Solve for x
    x = 191,383,012,149.66/646,599.39
  6. Step 6: Final answer
    x = 295,983.90

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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.