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Finding the Fourth Proportional to 1,408,351.71, 1,943,472.92 and 835,048.83

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Solution

The fourth proportional to 1,408,351.71, 1,943,472.92 and 835,048.83 is: 1,152,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,351.71 : 1,943,472.92 = 835,048.83 : x
  2. Step 2: Convert to fraction form
    1,408,351.71/1,943,472.92 = 835,048.83/x
  3. Step 3: Cross multiply
    1,408,351.71x = 1,943,472.92 × 835,048.83
  4. Step 4: Simplify right side
    1,408,351.71x = 1,622,894,783,807.44
  5. Step 5: Solve for x
    x = 1,622,894,783,807.44/1,408,351.71
  6. Step 6: Final answer
    x = 1,152,336.29

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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.