Home / 860,800.50-1,291,408.11-269,824.50

Finding the Fourth Proportional to 860,800.50, 1,291,408.11 and 269,824.50

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Solution

The fourth proportional to 860,800.50, 1,291,408.11 and 269,824.50 is: 404,801.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,800.50 : 1,291,408.11 = 269,824.50 : x
  2. Step 2: Convert to fraction form
    860,800.50/1,291,408.11 = 269,824.50/x
  3. Step 3: Cross multiply
    860,800.50x = 1,291,408.11 × 269,824.50
  4. Step 4: Simplify right side
    860,800.50x = 348,453,547,576.70
  5. Step 5: Solve for x
    x = 348,453,547,576.70/860,800.50
  6. Step 6: Final answer
    x = 404,801.75

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1.5x scale

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.