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Finding the Fourth Proportional to 603,681.40, 906,105.30 and 367,485.40

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Solution

The fourth proportional to 603,681.40, 906,105.30 and 367,485.40 is: 551,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,681.40 : 906,105.30 = 367,485.40 : x
  2. Step 2: Convert to fraction form
    603,681.40/906,105.30 = 367,485.40/x
  3. Step 3: Cross multiply
    603,681.40x = 906,105.30 × 367,485.40
  4. Step 4: Simplify right side
    603,681.40x = 332,980,468,612.62
  5. Step 5: Solve for x
    x = 332,980,468,612.62/603,681.40
  6. Step 6: Final answer
    x = 551,583.12

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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.