Home / 939,490.80-1,409,236.20-603,567.60

Finding the Fourth Proportional to 939,490.80, 1,409,236.20 and 603,567.60

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Solution

The fourth proportional to 939,490.80, 1,409,236.20 and 603,567.60 is: 905,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,490.80 : 1,409,236.20 = 603,567.60 : x
  2. Step 2: Convert to fraction form
    939,490.80/1,409,236.20 = 603,567.60/x
  3. Step 3: Cross multiply
    939,490.80x = 1,409,236.20 × 603,567.60
  4. Step 4: Simplify right side
    939,490.80x = 850,569,311,067.12
  5. Step 5: Solve for x
    x = 850,569,311,067.12/939,490.80
  6. Step 6: Final answer
    x = 905,351.40

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Double scale
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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.