Home / 1,289,636.12-1,934,451.70-343,007.84

Finding the Fourth Proportional to 1,289,636.12, 1,934,451.70 and 343,007.84

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Solution

The fourth proportional to 1,289,636.12, 1,934,451.70 and 343,007.84 is: 514,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,636.12 : 1,934,451.70 = 343,007.84 : x
  2. Step 2: Convert to fraction form
    1,289,636.12/1,934,451.70 = 343,007.84/x
  3. Step 3: Cross multiply
    1,289,636.12x = 1,934,451.70 × 343,007.84
  4. Step 4: Simplify right side
    1,289,636.12x = 663,532,099,201.33
  5. Step 5: Solve for x
    x = 663,532,099,201.33/1,289,636.12
  6. Step 6: Final answer
    x = 514,511.10

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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.