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Finding the Fourth Proportional to 603,480.40, 905,803.80 and 367,284.40

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Solution

The fourth proportional to 603,480.40, 905,803.80 and 367,284.40 is: 551,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,480.40 : 905,803.80 = 367,284.40 : x
  2. Step 2: Convert to fraction form
    603,480.40/905,803.80 = 367,284.40/x
  3. Step 3: Cross multiply
    603,480.40x = 905,803.80 × 367,284.40
  4. Step 4: Simplify right side
    603,480.40x = 332,687,605,200.72
  5. Step 5: Solve for x
    x = 332,687,605,200.72/603,480.40
  6. Step 6: Final answer
    x = 551,281.54

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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.