Home / 688,604.60-1,032,906.90-419,166.20

Finding the Fourth Proportional to 688,604.60, 1,032,906.90 and 419,166.20

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Solution

The fourth proportional to 688,604.60, 1,032,906.90 and 419,166.20 is: 628,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,604.60 : 1,032,906.90 = 419,166.20 : x
  2. Step 2: Convert to fraction form
    688,604.60/1,032,906.90 = 419,166.20/x
  3. Step 3: Cross multiply
    688,604.60x = 1,032,906.90 × 419,166.20
  4. Step 4: Simplify right side
    688,604.60x = 432,959,660,226.78
  5. Step 5: Solve for x
    x = 432,959,660,226.78/688,604.60
  6. Step 6: Final answer
    x = 628,749.30

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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.