Home / 860,301.14-1,290,453.80-261,266.85

Finding the Fourth Proportional to 860,301.14, 1,290,453.80 and 261,266.85

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Solution

The fourth proportional to 860,301.14, 1,290,453.80 and 261,266.85 is: 391,900.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,301.14 : 1,290,453.80 = 261,266.85 : x
  2. Step 2: Convert to fraction form
    860,301.14/1,290,453.80 = 261,266.85/x
  3. Step 3: Cross multiply
    860,301.14x = 1,290,453.80 × 261,266.85
  4. Step 4: Simplify right side
    860,301.14x = 337,152,798,090.20
  5. Step 5: Solve for x
    x = 337,152,798,090.20/860,301.14
  6. Step 6: Final answer
    x = 391,900.91

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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.