Home / 692,843.60-1,039,265.40-393,208.40

Finding the Fourth Proportional to 692,843.60, 1,039,265.40 and 393,208.40

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Solution

The fourth proportional to 692,843.60, 1,039,265.40 and 393,208.40 is: 589,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,843.60 : 1,039,265.40 = 393,208.40 : x
  2. Step 2: Convert to fraction form
    692,843.60/1,039,265.40 = 393,208.40/x
  3. Step 3: Cross multiply
    692,843.60x = 1,039,265.40 × 393,208.40
  4. Step 4: Simplify right side
    692,843.60x = 408,647,885,109.36
  5. Step 5: Solve for x
    x = 408,647,885,109.36/692,843.60
  6. Step 6: Final answer
    x = 589,812.60

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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.