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Finding the Fourth Proportional to 341,131.40, 511,697.10 and 217,022.60

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Solution

The fourth proportional to 341,131.40, 511,697.10 and 217,022.60 is: 325,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,131.40 : 511,697.10 = 217,022.60 : x
  2. Step 2: Convert to fraction form
    341,131.40/511,697.10 = 217,022.60/x
  3. Step 3: Cross multiply
    341,131.40x = 511,697.10 × 217,022.60
  4. Step 4: Simplify right side
    341,131.40x = 111,049,835,054.46
  5. Step 5: Solve for x
    x = 111,049,835,054.46/341,131.40
  6. Step 6: Final answer
    x = 325,533.90

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Double scale
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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.