Home / 683,706.80-1,025,560.20-329,412.80

Finding the Fourth Proportional to 683,706.80, 1,025,560.20 and 329,412.80

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Solution

The fourth proportional to 683,706.80, 1,025,560.20 and 329,412.80 is: 494,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,706.80 : 1,025,560.20 = 329,412.80 : x
  2. Step 2: Convert to fraction form
    683,706.80/1,025,560.20 = 329,412.80/x
  3. Step 3: Cross multiply
    683,706.80x = 1,025,560.20 × 329,412.80
  4. Step 4: Simplify right side
    683,706.80x = 337,832,657,050.56
  5. Step 5: Solve for x
    x = 337,832,657,050.56/683,706.80
  6. Step 6: Final answer
    x = 494,119.20

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Half scale
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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.