Home / 885,770.20-1,328,655.30-511,355.80

Finding the Fourth Proportional to 885,770.20, 1,328,655.30 and 511,355.80

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Solution

The fourth proportional to 885,770.20, 1,328,655.30 and 511,355.80 is: 767,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,770.20 : 1,328,655.30 = 511,355.80 : x
  2. Step 2: Convert to fraction form
    885,770.20/1,328,655.30 = 511,355.80/x
  3. Step 3: Cross multiply
    885,770.20x = 1,328,655.30 × 511,355.80
  4. Step 4: Simplify right side
    885,770.20x = 679,415,593,855.74
  5. Step 5: Solve for x
    x = 679,415,593,855.74/885,770.20
  6. Step 6: Final answer
    x = 767,033.70

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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.