Home / 712,540.64-983,286.72-406,611.44

Finding the Fourth Proportional to 712,540.64, 983,286.72 and 406,611.44

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Solution

The fourth proportional to 712,540.64, 983,286.72 and 406,611.44 is: 561,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,540.64 : 983,286.72 = 406,611.44 : x
  2. Step 2: Convert to fraction form
    712,540.64/983,286.72 = 406,611.44/x
  3. Step 3: Cross multiply
    712,540.64x = 983,286.72 × 406,611.44
  4. Step 4: Simplify right side
    712,540.64x = 399,815,629,152.08
  5. Step 5: Solve for x
    x = 399,815,629,152.08/712,540.64
  6. Step 6: Final answer
    x = 561,112.74

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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.