Home / 1,657,205.40-2,286,679.80-931,912.92

Finding the Fourth Proportional to 1,657,205.40, 2,286,679.80 and 931,912.92

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Solution

The fourth proportional to 1,657,205.40, 2,286,679.80 and 931,912.92 is: 1,285,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,205.40 : 2,286,679.80 = 931,912.92 : x
  2. Step 2: Convert to fraction form
    1,657,205.40/2,286,679.80 = 931,912.92/x
  3. Step 3: Cross multiply
    1,657,205.40x = 2,286,679.80 × 931,912.92
  4. Step 4: Simplify right side
    1,657,205.40x = 2,130,986,449,523.02
  5. Step 5: Solve for x
    x = 2,130,986,449,523.02/1,657,205.40
  6. Step 6: Final answer
    x = 1,285,891.57

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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.