Home / 808,763.80-1,213,404.90-542,824.60

Finding the Fourth Proportional to 808,763.80, 1,213,404.90 and 542,824.60

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Solution

The fourth proportional to 808,763.80, 1,213,404.90 and 542,824.60 is: 814,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,763.80 : 1,213,404.90 = 542,824.60 : x
  2. Step 2: Convert to fraction form
    808,763.80/1,213,404.90 = 542,824.60/x
  3. Step 3: Cross multiply
    808,763.80x = 1,213,404.90 × 542,824.60
  4. Step 4: Simplify right side
    808,763.80x = 658,666,029,480.54
  5. Step 5: Solve for x
    x = 658,666,029,480.54/808,763.80
  6. Step 6: Final answer
    x = 814,410.87

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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.