Home / 886,839.40-1,330,259.10-512,669.80

Finding the Fourth Proportional to 886,839.40, 1,330,259.10 and 512,669.80

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Solution

The fourth proportional to 886,839.40, 1,330,259.10 and 512,669.80 is: 769,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,839.40 : 1,330,259.10 = 512,669.80 : x
  2. Step 2: Convert to fraction form
    886,839.40/1,330,259.10 = 512,669.80/x
  3. Step 3: Cross multiply
    886,839.40x = 1,330,259.10 × 512,669.80
  4. Step 4: Simplify right side
    886,839.40x = 681,983,666,745.18
  5. Step 5: Solve for x
    x = 681,983,666,745.18/886,839.40
  6. Step 6: Final answer
    x = 769,004.70

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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.