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Finding the Fourth Proportional to 1,966,961.60, 2,951,133.60 and 704,830.40

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Solution

The fourth proportional to 1,966,961.60, 2,951,133.60 and 704,830.40 is: 1,057,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966,961.60 : 2,951,133.60 = 704,830.40 : x
  2. Step 2: Convert to fraction form
    1,966,961.60/2,951,133.60 = 704,830.40/x
  3. Step 3: Cross multiply
    1,966,961.60x = 2,951,133.60 × 704,830.40
  4. Step 4: Simplify right side
    1,966,961.60x = 2,080,048,675,741.44
  5. Step 5: Solve for x
    x = 2,080,048,675,741.44/1,966,961.60
  6. Step 6: Final answer
    x = 1,057,493.28

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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.