Home / 812,301.93-1,218,591.18-407,687.04

Finding the Fourth Proportional to 812,301.93, 1,218,591.18 and 407,687.04

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Solution

The fourth proportional to 812,301.93, 1,218,591.18 and 407,687.04 is: 611,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,301.93 : 1,218,591.18 = 407,687.04 : x
  2. Step 2: Convert to fraction form
    812,301.93/1,218,591.18 = 407,687.04/x
  3. Step 3: Cross multiply
    812,301.93x = 1,218,591.18 × 407,687.04
  4. Step 4: Simplify right side
    812,301.93x = 496,803,831,144.31
  5. Step 5: Solve for x
    x = 496,803,831,144.31/812,301.93
  6. Step 6: Final answer
    x = 611,599.96

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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.