Home / 818,964.89-1,130,156.19-456,380.76

Finding the Fourth Proportional to 818,964.89, 1,130,156.19 and 456,380.76

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Solution

The fourth proportional to 818,964.89, 1,130,156.19 and 456,380.76 is: 629,796.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,964.89 : 1,130,156.19 = 456,380.76 : x
  2. Step 2: Convert to fraction form
    818,964.89/1,130,156.19 = 456,380.76/x
  3. Step 3: Cross multiply
    818,964.89x = 1,130,156.19 × 456,380.76
  4. Step 4: Simplify right side
    818,964.89x = 515,781,540,910.90
  5. Step 5: Solve for x
    x = 515,781,540,910.90/818,964.89
  6. Step 6: Final answer
    x = 629,796.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.