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Finding the Fourth Proportional to 455,928.90, 683,893.35 and 367,355.40

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Solution

The fourth proportional to 455,928.90, 683,893.35 and 367,355.40 is: 551,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,928.90 : 683,893.35 = 367,355.40 : x
  2. Step 2: Convert to fraction form
    455,928.90/683,893.35 = 367,355.40/x
  3. Step 3: Cross multiply
    455,928.90x = 683,893.35 × 367,355.40
  4. Step 4: Simplify right side
    455,928.90x = 251,231,915,146.59
  5. Step 5: Solve for x
    x = 251,231,915,146.59/455,928.90
  6. Step 6: Final answer
    x = 551,033.10

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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.