Home / 1,212,006.80-1,818,010.20-413,022.80

Finding the Fourth Proportional to 1,212,006.80, 1,818,010.20 and 413,022.80

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Solution

The fourth proportional to 1,212,006.80, 1,818,010.20 and 413,022.80 is: 619,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,006.80 : 1,818,010.20 = 413,022.80 : x
  2. Step 2: Convert to fraction form
    1,212,006.80/1,818,010.20 = 413,022.80/x
  3. Step 3: Cross multiply
    1,212,006.80x = 1,818,010.20 × 413,022.80
  4. Step 4: Simplify right side
    1,212,006.80x = 750,879,663,232.56
  5. Step 5: Solve for x
    x = 750,879,663,232.56/1,212,006.80
  6. Step 6: Final answer
    x = 619,534.20

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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.