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Finding the Fourth Proportional to 627,195.40, 940,101.90 and 346,913.80

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Solution

The fourth proportional to 627,195.40, 940,101.90 and 346,913.80 is: 519,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,195.40 : 940,101.90 = 346,913.80 : x
  2. Step 2: Convert to fraction form
    627,195.40/940,101.90 = 346,913.80/x
  3. Step 3: Cross multiply
    627,195.40x = 940,101.90 × 346,913.80
  4. Step 4: Simplify right side
    627,195.40x = 326,134,322,516.22
  5. Step 5: Solve for x
    x = 326,134,322,516.22/627,195.40
  6. Step 6: Final answer
    x = 519,988.38

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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.