Home / 805,905.20-1,209,732.60-629,195.60

Finding the Fourth Proportional to 805,905.20, 1,209,732.60 and 629,195.60

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Solution

The fourth proportional to 805,905.20, 1,209,732.60 and 629,195.60 is: 944,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,905.20 : 1,209,732.60 = 629,195.60 : x
  2. Step 2: Convert to fraction form
    805,905.20/1,209,732.60 = 629,195.60/x
  3. Step 3: Cross multiply
    805,905.20x = 1,209,732.60 × 629,195.60
  4. Step 4: Simplify right side
    805,905.20x = 761,158,429,096.56
  5. Step 5: Solve for x
    x = 761,158,429,096.56/805,905.20
  6. Step 6: Final answer
    x = 944,476.38

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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.