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Finding the Fourth Proportional to 886,313.54, 1,329,472.46 and 353,877.86

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Solution

The fourth proportional to 886,313.54, 1,329,472.46 and 353,877.86 is: 530,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,313.54 : 1,329,472.46 = 353,877.86 : x
  2. Step 2: Convert to fraction form
    886,313.54/1,329,472.46 = 353,877.86/x
  3. Step 3: Cross multiply
    886,313.54x = 1,329,472.46 × 353,877.86
  4. Step 4: Simplify right side
    886,313.54x = 470,470,863,311.07
  5. Step 5: Solve for x
    x = 470,470,863,311.07/886,313.54
  6. Step 6: Final answer
    x = 530,817.64

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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.