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Finding the Fourth Proportional to 367,412.46, 551,153.54 and 142,790.23

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Solution

The fourth proportional to 367,412.46, 551,153.54 and 142,790.23 is: 214,198.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,412.46 : 551,153.54 = 142,790.23 : x
  2. Step 2: Convert to fraction form
    367,412.46/551,153.54 = 142,790.23/x
  3. Step 3: Cross multiply
    367,412.46x = 551,153.54 × 142,790.23
  4. Step 4: Simplify right side
    367,412.46x = 78,699,340,741.91
  5. Step 5: Solve for x
    x = 78,699,340,741.91/367,412.46
  6. Step 6: Final answer
    x = 214,198.89

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1.5x scale

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.