Home / 1,212,243.40-1,818,192.30-413,561.80

Finding the Fourth Proportional to 1,212,243.40, 1,818,192.30 and 413,561.80

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Solution

The fourth proportional to 1,212,243.40, 1,818,192.30 and 413,561.80 is: 620,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,243.40 : 1,818,192.30 = 413,561.80 : x
  2. Step 2: Convert to fraction form
    1,212,243.40/1,818,192.30 = 413,561.80/x
  3. Step 3: Cross multiply
    1,212,243.40x = 1,818,192.30 × 413,561.80
  4. Step 4: Simplify right side
    1,212,243.40x = 751,934,880,334.14
  5. Step 5: Solve for x
    x = 751,934,880,334.14/1,212,243.40
  6. Step 6: Final answer
    x = 620,283.75

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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.