Home / 398,136.20-597,204.30-358,770.20

Finding the Fourth Proportional to 398,136.20, 597,204.30 and 358,770.20

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Solution

The fourth proportional to 398,136.20, 597,204.30 and 358,770.20 is: 538,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,136.20 : 597,204.30 = 358,770.20 : x
  2. Step 2: Convert to fraction form
    398,136.20/597,204.30 = 358,770.20/x
  3. Step 3: Cross multiply
    398,136.20x = 597,204.30 × 358,770.20
  4. Step 4: Simplify right side
    398,136.20x = 214,259,106,151.86
  5. Step 5: Solve for x
    x = 214,259,106,151.86/398,136.20
  6. Step 6: Final answer
    x = 538,155.30

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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.