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Finding the Fourth Proportional to 999,779.94, 1,379,697.22 and 547,070.94

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Solution

The fourth proportional to 999,779.94, 1,379,697.22 and 547,070.94 is: 754,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,779.94 : 1,379,697.22 = 547,070.94 : x
  2. Step 2: Convert to fraction form
    999,779.94/1,379,697.22 = 547,070.94/x
  3. Step 3: Cross multiply
    999,779.94x = 1,379,697.22 × 547,070.94
  4. Step 4: Simplify right side
    999,779.94x = 754,792,255,060.79
  5. Step 5: Solve for x
    x = 754,792,255,060.79/999,779.94
  6. Step 6: Final answer
    x = 754,958.39

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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.