Home / 2,653,455.60-3,979,211.40-856,810.80

Finding the Fourth Proportional to 2,653,455.60, 3,979,211.40 and 856,810.80

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Solution

The fourth proportional to 2,653,455.60, 3,979,211.40 and 856,810.80 is: 1,284,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653,455.60 : 3,979,211.40 = 856,810.80 : x
  2. Step 2: Convert to fraction form
    2,653,455.60/3,979,211.40 = 856,810.80/x
  3. Step 3: Cross multiply
    2,653,455.60x = 3,979,211.40 × 856,810.80
  4. Step 4: Simplify right side
    2,653,455.60x = 3,409,431,303,003.12
  5. Step 5: Solve for x
    x = 3,409,431,303,003.12/2,653,455.60
  6. Step 6: Final answer
    x = 1,284,902.34

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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.