Home / 812,141.64-1,219,409.99-453,014.15

Finding the Fourth Proportional to 812,141.64, 1,219,409.99 and 453,014.15

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Solution

The fourth proportional to 812,141.64, 1,219,409.99 and 453,014.15 is: 680,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,141.64 : 1,219,409.99 = 453,014.15 : x
  2. Step 2: Convert to fraction form
    812,141.64/1,219,409.99 = 453,014.15/x
  3. Step 3: Cross multiply
    812,141.64x = 1,219,409.99 × 453,014.15
  4. Step 4: Simplify right side
    812,141.64x = 552,409,971,759.24
  5. Step 5: Solve for x
    x = 552,409,971,759.24/812,141.64
  6. Step 6: Final answer
    x = 680,189.20

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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.