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Finding the Fourth Proportional to 2,019,427.98, 2,786,616.96 and 1,113,951.66

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Solution

The fourth proportional to 2,019,427.98, 2,786,616.96 and 1,113,951.66 is: 1,537,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,427.98 : 2,786,616.96 = 1,113,951.66 : x
  2. Step 2: Convert to fraction form
    2,019,427.98/2,786,616.96 = 1,113,951.66/x
  3. Step 3: Cross multiply
    2,019,427.98x = 2,786,616.96 × 1,113,951.66
  4. Step 4: Simplify right side
    2,019,427.98x = 3,104,156,588,376.15
  5. Step 5: Solve for x
    x = 3,104,156,588,376.15/2,019,427.98
  6. Step 6: Final answer
    x = 1,537,146.47

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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.