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Finding the Fourth Proportional to 603,914.40, 905,871.60 and 603,914.40

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Solution

The fourth proportional to 603,914.40, 905,871.60 and 603,914.40 is: 905,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,914.40 : 905,871.60 = 603,914.40 : x
  2. Step 2: Convert to fraction form
    603,914.40/905,871.60 = 603,914.40/x
  3. Step 3: Cross multiply
    603,914.40x = 905,871.60 × 603,914.40
  4. Step 4: Simplify right side
    603,914.40x = 547,068,903,791.04
  5. Step 5: Solve for x
    x = 547,068,903,791.04/603,914.40
  6. Step 6: Final answer
    x = 905,871.60

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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.