Home / 785,114.40-1,177,671.60-194,138.40

Finding the Fourth Proportional to 785,114.40, 1,177,671.60 and 194,138.40

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Solution

The fourth proportional to 785,114.40, 1,177,671.60 and 194,138.40 is: 291,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,114.40 : 1,177,671.60 = 194,138.40 : x
  2. Step 2: Convert to fraction form
    785,114.40/1,177,671.60 = 194,138.40/x
  3. Step 3: Cross multiply
    785,114.40x = 1,177,671.60 × 194,138.40
  4. Step 4: Simplify right side
    785,114.40x = 228,631,280,149.44
  5. Step 5: Solve for x
    x = 228,631,280,149.44/785,114.40
  6. Step 6: Final answer
    x = 291,207.60

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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.