Home / 683,706.60-1,025,559.90-329,412.60

Finding the Fourth Proportional to 683,706.60, 1,025,559.90 and 329,412.60

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Solution

The fourth proportional to 683,706.60, 1,025,559.90 and 329,412.60 is: 494,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,706.60 : 1,025,559.90 = 329,412.60 : x
  2. Step 2: Convert to fraction form
    683,706.60/1,025,559.90 = 329,412.60/x
  3. Step 3: Cross multiply
    683,706.60x = 1,025,559.90 × 329,412.60
  4. Step 4: Simplify right side
    683,706.60x = 337,832,353,114.74
  5. Step 5: Solve for x
    x = 337,832,353,114.74/683,706.60
  6. Step 6: Final answer
    x = 494,118.90

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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.