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Finding the Fourth Proportional to 603,730.50, 905,626.76 and 154,455.26

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Solution

The fourth proportional to 603,730.50, 905,626.76 and 154,455.26 is: 231,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,730.50 : 905,626.76 = 154,455.26 : x
  2. Step 2: Convert to fraction form
    603,730.50/905,626.76 = 154,455.26/x
  3. Step 3: Cross multiply
    603,730.50x = 905,626.76 × 154,455.26
  4. Step 4: Simplify right side
    603,730.50x = 139,878,816,678.76
  5. Step 5: Solve for x
    x = 139,878,816,678.76/603,730.50
  6. Step 6: Final answer
    x = 231,690.82

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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.