Home / 821,544.40-1,229,897.40-612,110.80

Finding the Fourth Proportional to 821,544.40, 1,229,897.40 and 612,110.80

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Solution

The fourth proportional to 821,544.40, 1,229,897.40 and 612,110.80 is: 916,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,544.40 : 1,229,897.40 = 612,110.80 : x
  2. Step 2: Convert to fraction form
    821,544.40/1,229,897.40 = 612,110.80/x
  3. Step 3: Cross multiply
    821,544.40x = 1,229,897.40 × 612,110.80
  4. Step 4: Simplify right side
    821,544.40x = 752,833,481,431.92
  5. Step 5: Solve for x
    x = 752,833,481,431.92/821,544.40
  6. Step 6: Final answer
    x = 916,363.72

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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.