Home / 860,938.32-1,291,453.38-261,853.68

Finding the Fourth Proportional to 860,938.32, 1,291,453.38 and 261,853.68

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Solution

The fourth proportional to 860,938.32, 1,291,453.38 and 261,853.68 is: 392,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,938.32 : 1,291,453.38 = 261,853.68 : x
  2. Step 2: Convert to fraction form
    860,938.32/1,291,453.38 = 261,853.68/x
  3. Step 3: Cross multiply
    860,938.32x = 1,291,453.38 × 261,853.68
  4. Step 4: Simplify right side
    860,938.32x = 338,171,820,101.44
  5. Step 5: Solve for x
    x = 338,171,820,101.44/860,938.32
  6. Step 6: Final answer
    x = 392,794.48

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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.