Home / 818,889.28-1,130,102.10-456,313.60

Finding the Fourth Proportional to 818,889.28, 1,130,102.10 and 456,313.60

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Solution

The fourth proportional to 818,889.28, 1,130,102.10 and 456,313.60 is: 629,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,889.28 : 1,130,102.10 = 456,313.60 : x
  2. Step 2: Convert to fraction form
    818,889.28/1,130,102.10 = 456,313.60/x
  3. Step 3: Cross multiply
    818,889.28x = 1,130,102.10 × 456,313.60
  4. Step 4: Simplify right side
    818,889.28x = 515,680,957,618.56
  5. Step 5: Solve for x
    x = 515,680,957,618.56/818,889.28
  6. Step 6: Final answer
    x = 629,732.21

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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.