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Finding the Fourth Proportional to 1,945,351, 2,918,039.46 and 615,655

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Solution

The fourth proportional to 1,945,351, 2,918,039.46 and 615,655 is: 923,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,351 : 2,918,039.46 = 615,655 : x
  2. Step 2: Convert to fraction form
    1,945,351/2,918,039.46 = 615,655/x
  3. Step 3: Cross multiply
    1,945,351x = 2,918,039.46 × 615,655
  4. Step 4: Simplify right side
    1,945,351x = 1,796,505,583,746.30
  5. Step 5: Solve for x
    x = 1,796,505,583,746.30/1,945,351
  6. Step 6: Final answer
    x = 923,486.60

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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.