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Finding the Fourth Proportional to 434,771.21, 599,990.18 and 325,682.28

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Solution

The fourth proportional to 434,771.21, 599,990.18 and 325,682.28 is: 449,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,771.21 : 599,990.18 = 325,682.28 : x
  2. Step 2: Convert to fraction form
    434,771.21/599,990.18 = 325,682.28/x
  3. Step 3: Cross multiply
    434,771.21x = 599,990.18 × 325,682.28
  4. Step 4: Simplify right side
    434,771.21x = 195,406,168,171.60
  5. Step 5: Solve for x
    x = 195,406,168,171.60/434,771.21
  6. Step 6: Final answer
    x = 449,445.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.