Home / 721,858.26-1,082,787.40-223,222.26

Finding the Fourth Proportional to 721,858.26, 1,082,787.40 and 223,222.26

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Solution

The fourth proportional to 721,858.26, 1,082,787.40 and 223,222.26 is: 334,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,858.26 : 1,082,787.40 = 223,222.26 : x
  2. Step 2: Convert to fraction form
    721,858.26/1,082,787.40 = 223,222.26/x
  3. Step 3: Cross multiply
    721,858.26x = 1,082,787.40 × 223,222.26
  4. Step 4: Simplify right side
    721,858.26x = 241,702,250,527.52
  5. Step 5: Solve for x
    x = 241,702,250,527.52/721,858.26
  6. Step 6: Final answer
    x = 334,833.39

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Half scale
Find fourth proportional to 1,443,716.52, 2,165,574.80 and 446,444.52
Double scale
Find fourth proportional to 721,859.26, 1,082,788.90 and 223,223.26
Similar ratio
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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.