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Finding the Fourth Proportional to 456,068.40, 684,102.60 and 449,847.60

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Solution

The fourth proportional to 456,068.40, 684,102.60 and 449,847.60 is: 674,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,068.40 : 684,102.60 = 449,847.60 : x
  2. Step 2: Convert to fraction form
    456,068.40/684,102.60 = 449,847.60/x
  3. Step 3: Cross multiply
    456,068.40x = 684,102.60 × 449,847.60
  4. Step 4: Simplify right side
    456,068.40x = 307,741,912,763.76
  5. Step 5: Solve for x
    x = 307,741,912,763.76/456,068.40
  6. Step 6: Final answer
    x = 674,771.40

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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.