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Finding the Fourth Proportional to 455,612.10, 683,418.15 and 367,038.60

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Solution

The fourth proportional to 455,612.10, 683,418.15 and 367,038.60 is: 550,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,612.10 : 683,418.15 = 367,038.60 : x
  2. Step 2: Convert to fraction form
    455,612.10/683,418.15 = 367,038.60/x
  3. Step 3: Cross multiply
    455,612.10x = 683,418.15 × 367,038.60
  4. Step 4: Simplify right side
    455,612.10x = 250,840,840,990.59
  5. Step 5: Solve for x
    x = 250,840,840,990.59/455,612.10
  6. Step 6: Final answer
    x = 550,557.90

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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.