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Finding the Fourth Proportional to 1,299,374.84, 1,793,193 and 726,414.86

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Solution

The fourth proportional to 1,299,374.84, 1,793,193 and 726,414.86 is: 1,002,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,374.84 : 1,793,193 = 726,414.86 : x
  2. Step 2: Convert to fraction form
    1,299,374.84/1,793,193 = 726,414.86/x
  3. Step 3: Cross multiply
    1,299,374.84x = 1,793,193 × 726,414.86
  4. Step 4: Simplify right side
    1,299,374.84x = 1,302,602,042,047.98
  5. Step 5: Solve for x
    x = 1,302,602,042,047.98/1,299,374.84
  6. Step 6: Final answer
    x = 1,002,483.66

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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.