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Finding the Fourth Proportional to 648,834.69, 888,888.69 and 624,576.05

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Solution

The fourth proportional to 648,834.69, 888,888.69 and 624,576.05 is: 855,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,834.69 : 888,888.69 = 624,576.05 : x
  2. Step 2: Convert to fraction form
    648,834.69/888,888.69 = 624,576.05/x
  3. Step 3: Cross multiply
    648,834.69x = 888,888.69 × 624,576.05
  4. Step 4: Simplify right side
    648,834.69x = 555,178,586,889.88
  5. Step 5: Solve for x
    x = 555,178,586,889.88/648,834.69
  6. Step 6: Final answer
    x = 855,654.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.