Home / 1,212,587.55-1,818,380.97-413,933.49

Finding the Fourth Proportional to 1,212,587.55, 1,818,380.97 and 413,933.49

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Solution

The fourth proportional to 1,212,587.55, 1,818,380.97 and 413,933.49 is: 620,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,587.55 : 1,818,380.97 = 413,933.49 : x
  2. Step 2: Convert to fraction form
    1,212,587.55/1,818,380.97 = 413,933.49/x
  3. Step 3: Cross multiply
    1,212,587.55x = 1,818,380.97 × 413,933.49
  4. Step 4: Simplify right side
    1,212,587.55x = 752,688,781,061.69
  5. Step 5: Solve for x
    x = 752,688,781,061.69/1,212,587.55
  6. Step 6: Final answer
    x = 620,729.43

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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.