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Finding the Fourth Proportional to 999,500.94, 1,379,343.78 and 546,791.94

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Solution

The fourth proportional to 999,500.94, 1,379,343.78 and 546,791.94 is: 754,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,500.94 : 1,379,343.78 = 546,791.94 : x
  2. Step 2: Convert to fraction form
    999,500.94/1,379,343.78 = 546,791.94/x
  3. Step 3: Cross multiply
    999,500.94x = 1,379,343.78 × 546,791.94
  4. Step 4: Simplify right side
    999,500.94x = 754,214,061,393.13
  5. Step 5: Solve for x
    x = 754,214,061,393.13/999,500.94
  6. Step 6: Final answer
    x = 754,590.65

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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.