Home / 838,786.20-1,257,130.08-660,589.44

Finding the Fourth Proportional to 838,786.20, 1,257,130.08 and 660,589.44

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Solution

The fourth proportional to 838,786.20, 1,257,130.08 and 660,589.44 is: 990,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,786.20 : 1,257,130.08 = 660,589.44 : x
  2. Step 2: Convert to fraction form
    838,786.20/1,257,130.08 = 660,589.44/x
  3. Step 3: Cross multiply
    838,786.20x = 1,257,130.08 × 660,589.44
  4. Step 4: Simplify right side
    838,786.20x = 830,446,855,554.36
  5. Step 5: Solve for x
    x = 830,446,855,554.36/838,786.20
  6. Step 6: Final answer
    x = 990,057.84

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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.