Home / 818,796.90-1,228,195.35-688,889.10

Finding the Fourth Proportional to 818,796.90, 1,228,195.35 and 688,889.10

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Solution

The fourth proportional to 818,796.90, 1,228,195.35 and 688,889.10 is: 1,033,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,796.90 : 1,228,195.35 = 688,889.10 : x
  2. Step 2: Convert to fraction form
    818,796.90/1,228,195.35 = 688,889.10/x
  3. Step 3: Cross multiply
    818,796.90x = 1,228,195.35 × 688,889.10
  4. Step 4: Simplify right side
    818,796.90x = 846,090,389,285.69
  5. Step 5: Solve for x
    x = 846,090,389,285.69/818,796.90
  6. Step 6: Final answer
    x = 1,033,333.65

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Double scale
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Similar ratio
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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.