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Finding the Fourth Proportional to 403,974.40, 605,961.60 and 341,766.40

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Solution

The fourth proportional to 403,974.40, 605,961.60 and 341,766.40 is: 512,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,974.40 : 605,961.60 = 341,766.40 : x
  2. Step 2: Convert to fraction form
    403,974.40/605,961.60 = 341,766.40/x
  3. Step 3: Cross multiply
    403,974.40x = 605,961.60 × 341,766.40
  4. Step 4: Simplify right side
    403,974.40x = 207,097,314,570.24
  5. Step 5: Solve for x
    x = 207,097,314,570.24/403,974.40
  6. Step 6: Final answer
    x = 512,649.60

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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.