Home / 877,822.80-1,211,563.40-515,326.80

Finding the Fourth Proportional to 877,822.80, 1,211,563.40 and 515,326.80

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Solution

The fourth proportional to 877,822.80, 1,211,563.40 and 515,326.80 is: 711,249.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,822.80 : 1,211,563.40 = 515,326.80 : x
  2. Step 2: Convert to fraction form
    877,822.80/1,211,563.40 = 515,326.80/x
  3. Step 3: Cross multiply
    877,822.80x = 1,211,563.40 × 515,326.80
  4. Step 4: Simplify right side
    877,822.80x = 624,351,089,919.12
  5. Step 5: Solve for x
    x = 624,351,089,919.12/877,822.80
  6. Step 6: Final answer
    x = 711,249.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.