Home / 919,634.45-1,379,684.95-288,553.73

Finding the Fourth Proportional to 919,634.45, 1,379,684.95 and 288,553.73

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Solution

The fourth proportional to 919,634.45, 1,379,684.95 and 288,553.73 is: 432,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,634.45 : 1,379,684.95 = 288,553.73 : x
  2. Step 2: Convert to fraction form
    919,634.45/1,379,684.95 = 288,553.73/x
  3. Step 3: Cross multiply
    919,634.45x = 1,379,684.95 × 288,553.73
  4. Step 4: Simplify right side
    919,634.45x = 398,113,230,927.55
  5. Step 5: Solve for x
    x = 398,113,230,927.55/919,634.45
  6. Step 6: Final answer
    x = 432,903.78

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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.