Home / 1,289,408.32-1,934,110.14-342,778.96

Finding the Fourth Proportional to 1,289,408.32, 1,934,110.14 and 342,778.96

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Solution

The fourth proportional to 1,289,408.32, 1,934,110.14 and 342,778.96 is: 514,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,408.32 : 1,934,110.14 = 342,778.96 : x
  2. Step 2: Convert to fraction form
    1,289,408.32/1,934,110.14 = 342,778.96/x
  3. Step 3: Cross multiply
    1,289,408.32x = 1,934,110.14 × 342,778.96
  4. Step 4: Simplify right side
    1,289,408.32x = 662,972,262,314.65
  5. Step 5: Solve for x
    x = 662,972,262,314.65/1,289,408.32
  6. Step 6: Final answer
    x = 514,167.82

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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.