Home / 1,284,777.80-1,772,919.28-711,783.80

Finding the Fourth Proportional to 1,284,777.80, 1,772,919.28 and 711,783.80

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Solution

The fourth proportional to 1,284,777.80, 1,772,919.28 and 711,783.80 is: 982,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,777.80 : 1,772,919.28 = 711,783.80 : x
  2. Step 2: Convert to fraction form
    1,284,777.80/1,772,919.28 = 711,783.80/x
  3. Step 3: Cross multiply
    1,284,777.80x = 1,772,919.28 × 711,783.80
  4. Step 4: Simplify right side
    1,284,777.80x = 1,261,935,222,211.66
  5. Step 5: Solve for x
    x = 1,261,935,222,211.66/1,284,777.80
  6. Step 6: Final answer
    x = 982,220.60

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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.