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Finding the Fourth Proportional to 603,817, 905,756.28 and 154,541.56

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Solution

The fourth proportional to 603,817, 905,756.28 and 154,541.56 is: 231,820.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,817 : 905,756.28 = 154,541.56 : x
  2. Step 2: Convert to fraction form
    603,817/905,756.28 = 154,541.56/x
  3. Step 3: Cross multiply
    603,817x = 905,756.28 × 154,541.56
  4. Step 4: Simplify right side
    603,817x = 139,976,988,491.00
  5. Step 5: Solve for x
    x = 139,976,988,491.00/603,817
  6. Step 6: Final answer
    x = 231,820.22

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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.