Home / 876,333.56-1,209,396.32-494,220.92

Finding the Fourth Proportional to 876,333.56, 1,209,396.32 and 494,220.92

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Solution

The fourth proportional to 876,333.56, 1,209,396.32 and 494,220.92 is: 682,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,333.56 : 1,209,396.32 = 494,220.92 : x
  2. Step 2: Convert to fraction form
    876,333.56/1,209,396.32 = 494,220.92/x
  3. Step 3: Cross multiply
    876,333.56x = 1,209,396.32 × 494,220.92
  4. Step 4: Simplify right side
    876,333.56x = 597,708,961,915.01
  5. Step 5: Solve for x
    x = 597,708,961,915.01/876,333.56
  6. Step 6: Final answer
    x = 682,056.46

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Half scale
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Double scale
Find fourth proportional to 876,334.56, 1,209,397.70 and 494,221.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.