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Finding the Fourth Proportional to 455,546.40, 683,319.60 and 449,325.60

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Solution

The fourth proportional to 455,546.40, 683,319.60 and 449,325.60 is: 673,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,546.40 : 683,319.60 = 449,325.60 : x
  2. Step 2: Convert to fraction form
    455,546.40/683,319.60 = 449,325.60/x
  3. Step 3: Cross multiply
    455,546.40x = 683,319.60 × 449,325.60
  4. Step 4: Simplify right side
    455,546.40x = 307,032,989,261.76
  5. Step 5: Solve for x
    x = 307,032,989,261.76/455,546.40
  6. Step 6: Final answer
    x = 673,988.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.