Home / 863,806.40-1,295,709.60-443,902.40

Finding the Fourth Proportional to 863,806.40, 1,295,709.60 and 443,902.40

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Solution

The fourth proportional to 863,806.40, 1,295,709.60 and 443,902.40 is: 665,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,806.40 : 1,295,709.60 = 443,902.40 : x
  2. Step 2: Convert to fraction form
    863,806.40/1,295,709.60 = 443,902.40/x
  3. Step 3: Cross multiply
    863,806.40x = 1,295,709.60 × 443,902.40
  4. Step 4: Simplify right side
    863,806.40x = 575,168,601,143.04
  5. Step 5: Solve for x
    x = 575,168,601,143.04/863,806.40
  6. Step 6: Final answer
    x = 665,853.60

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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.