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Finding the Fourth Proportional to 999,757.50, 1,379,665.35 and 547,048.50

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Solution

The fourth proportional to 999,757.50, 1,379,665.35 and 547,048.50 is: 754,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,757.50 : 1,379,665.35 = 547,048.50 : x
  2. Step 2: Convert to fraction form
    999,757.50/1,379,665.35 = 547,048.50/x
  3. Step 3: Cross multiply
    999,757.50x = 1,379,665.35 × 547,048.50
  4. Step 4: Simplify right side
    999,757.50x = 754,743,860,219.48
  5. Step 5: Solve for x
    x = 754,743,860,219.48/999,757.50
  6. Step 6: Final answer
    x = 754,926.93

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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.