Home / 818,366.31-1,226,762.11-419,195.07

Finding the Fourth Proportional to 818,366.31, 1,226,762.11 and 419,195.07

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Solution

The fourth proportional to 818,366.31, 1,226,762.11 and 419,195.07 is: 628,389.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,366.31 : 1,226,762.11 = 419,195.07 : x
  2. Step 2: Convert to fraction form
    818,366.31/1,226,762.11 = 419,195.07/x
  3. Step 3: Cross multiply
    818,366.31x = 1,226,762.11 × 419,195.07
  4. Step 4: Simplify right side
    818,366.31x = 514,252,628,574.80
  5. Step 5: Solve for x
    x = 514,252,628,574.80/818,366.31
  6. Step 6: Final answer
    x = 628,389.29

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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.