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Finding the Fourth Proportional to 999,495.54, 1,379,324.97 and 546,786.54

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Solution

The fourth proportional to 999,495.54, 1,379,324.97 and 546,786.54 is: 754,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,495.54 : 1,379,324.97 = 546,786.54 : x
  2. Step 2: Convert to fraction form
    999,495.54/1,379,324.97 = 546,786.54/x
  3. Step 3: Cross multiply
    999,495.54x = 1,379,324.97 × 546,786.54
  4. Step 4: Simplify right side
    999,495.54x = 754,196,327,881.90
  5. Step 5: Solve for x
    x = 754,196,327,881.90/999,495.54
  6. Step 6: Final answer
    x = 754,576.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.