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Finding the Fourth Proportional to 367,614.45, 551,421.68 and 145,998.45

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Solution

The fourth proportional to 367,614.45, 551,421.68 and 145,998.45 is: 218,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,614.45 : 551,421.68 = 145,998.45 : x
  2. Step 2: Convert to fraction form
    367,614.45/551,421.68 = 145,998.45/x
  3. Step 3: Cross multiply
    367,614.45x = 551,421.68 × 145,998.45
  4. Step 4: Simplify right side
    367,614.45x = 80,506,709,846.40
  5. Step 5: Solve for x
    x = 80,506,709,846.40/367,614.45
  6. Step 6: Final answer
    x = 218,997.68

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Similar ratio
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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.