Home / 770,003.80-1,153,776.90-644,666.20

Finding the Fourth Proportional to 770,003.80, 1,153,776.90 and 644,666.20

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Solution

The fourth proportional to 770,003.80, 1,153,776.90 and 644,666.20 is: 965,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,003.80 : 1,153,776.90 = 644,666.20 : x
  2. Step 2: Convert to fraction form
    770,003.80/1,153,776.90 = 644,666.20/x
  3. Step 3: Cross multiply
    770,003.80x = 1,153,776.90 × 644,666.20
  4. Step 4: Simplify right side
    770,003.80x = 743,800,969,770.78
  5. Step 5: Solve for x
    x = 743,800,969,770.78/770,003.80
  6. Step 6: Final answer
    x = 965,970.52

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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.