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Finding the Fourth Proportional to 627,196.40, 940,103.40 and 346,914.80

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Solution

The fourth proportional to 627,196.40, 940,103.40 and 346,914.80 is: 519,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,196.40 : 940,103.40 = 346,914.80 : x
  2. Step 2: Convert to fraction form
    627,196.40/940,103.40 = 346,914.80/x
  3. Step 3: Cross multiply
    627,196.40x = 940,103.40 × 346,914.80
  4. Step 4: Simplify right side
    627,196.40x = 326,135,782,990.32
  5. Step 5: Solve for x
    x = 326,135,782,990.32/627,196.40
  6. Step 6: Final answer
    x = 519,989.88

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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.