Home / 857,697.11-1,286,550.09-289,083.15

Finding the Fourth Proportional to 857,697.11, 1,286,550.09 and 289,083.15

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Solution

The fourth proportional to 857,697.11, 1,286,550.09 and 289,083.15 is: 433,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,697.11 : 1,286,550.09 = 289,083.15 : x
  2. Step 2: Convert to fraction form
    857,697.11/1,286,550.09 = 289,083.15/x
  3. Step 3: Cross multiply
    857,697.11x = 1,286,550.09 × 289,083.15
  4. Step 4: Simplify right side
    857,697.11x = 371,919,952,649.98
  5. Step 5: Solve for x
    x = 371,919,952,649.98/857,697.11
  6. Step 6: Final answer
    x = 433,626.22

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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.