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Finding the Fourth Proportional to 5,579,142, 8,368,713 and 1,376,646

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Solution

The fourth proportional to 5,579,142, 8,368,713 and 1,376,646 is: 2,064,969

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579,142 : 8,368,713 = 1,376,646 : x
  2. Step 2: Convert to fraction form
    5,579,142/8,368,713 = 1,376,646/x
  3. Step 3: Cross multiply
    5,579,142x = 8,368,713 × 1,376,646
  4. Step 4: Simplify right side
    5,579,142x = 11,520,755,276,598
  5. Step 5: Solve for x
    x = 11,520,755,276,598/5,579,142
  6. Step 6: Final answer
    x = 2,064,969

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.