Home / 1,221,910.80-1,833,522.30-512,010.60

Finding the Fourth Proportional to 1,221,910.80, 1,833,522.30 and 512,010.60

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Solution

The fourth proportional to 1,221,910.80, 1,833,522.30 and 512,010.60 is: 768,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,910.80 : 1,833,522.30 = 512,010.60 : x
  2. Step 2: Convert to fraction form
    1,221,910.80/1,833,522.30 = 512,010.60/x
  3. Step 3: Cross multiply
    1,221,910.80x = 1,833,522.30 × 512,010.60
  4. Step 4: Simplify right side
    1,221,910.80x = 938,782,852,936.38
  5. Step 5: Solve for x
    x = 938,782,852,936.38/1,221,910.80
  6. Step 6: Final answer
    x = 768,290.82

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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.