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Finding the Fourth Proportional to 999,952.40, 1,379,915.88 and 547,234.32

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Solution

The fourth proportional to 999,952.40, 1,379,915.88 and 547,234.32 is: 755,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,952.40 : 1,379,915.88 = 547,234.32 : x
  2. Step 2: Convert to fraction form
    999,952.40/1,379,915.88 = 547,234.32/x
  3. Step 3: Cross multiply
    999,952.40x = 1,379,915.88 × 547,234.32
  4. Step 4: Simplify right side
    999,952.40x = 755,137,328,249.00
  5. Step 5: Solve for x
    x = 755,137,328,249.00/999,952.40
  6. Step 6: Final answer
    x = 755,173.27

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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.