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Finding the Fourth Proportional to 455,611.10, 683,416.65 and 367,037.60

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Solution

The fourth proportional to 455,611.10, 683,416.65 and 367,037.60 is: 550,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,611.10 : 683,416.65 = 367,037.60 : x
  2. Step 2: Convert to fraction form
    455,611.10/683,416.65 = 367,037.60/x
  3. Step 3: Cross multiply
    455,611.10x = 683,416.65 × 367,037.60
  4. Step 4: Simplify right side
    455,611.10x = 250,839,607,016.04
  5. Step 5: Solve for x
    x = 250,839,607,016.04/455,611.10
  6. Step 6: Final answer
    x = 550,556.40

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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.