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Finding the Fourth Proportional to 1,977,828.83, 2,965,761.80 and 629,815.81

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Solution

The fourth proportional to 1,977,828.83, 2,965,761.80 and 629,815.81 is: 944,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,828.83 : 2,965,761.80 = 629,815.81 : x
  2. Step 2: Convert to fraction form
    1,977,828.83/2,965,761.80 = 629,815.81/x
  3. Step 3: Cross multiply
    1,977,828.83x = 2,965,761.80 × 629,815.81
  4. Step 4: Simplify right side
    1,977,828.83x = 1,867,883,655,505.25
  5. Step 5: Solve for x
    x = 1,867,883,655,505.25/1,977,828.83
  6. Step 6: Final answer
    x = 944,411.18

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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.