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Finding the Fourth Proportional to 603,709.40, 906,147.30 and 367,513.40

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Solution

The fourth proportional to 603,709.40, 906,147.30 and 367,513.40 is: 551,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,709.40 : 906,147.30 = 367,513.40 : x
  2. Step 2: Convert to fraction form
    603,709.40/906,147.30 = 367,513.40/x
  3. Step 3: Cross multiply
    603,709.40x = 906,147.30 × 367,513.40
  4. Step 4: Simplify right side
    603,709.40x = 333,021,275,123.82
  5. Step 5: Solve for x
    x = 333,021,275,123.82/603,709.40
  6. Step 6: Final answer
    x = 551,625.13

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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.