Home / 1,318,551.78-1,977,173.39-419,876.43

Finding the Fourth Proportional to 1,318,551.78, 1,977,173.39 and 419,876.43

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Solution

The fourth proportional to 1,318,551.78, 1,977,173.39 and 419,876.43 is: 629,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,551.78 : 1,977,173.39 = 419,876.43 : x
  2. Step 2: Convert to fraction form
    1,318,551.78/1,977,173.39 = 419,876.43/x
  3. Step 3: Cross multiply
    1,318,551.78x = 1,977,173.39 × 419,876.43
  4. Step 4: Simplify right side
    1,318,551.78x = 830,168,502,384.82
  5. Step 5: Solve for x
    x = 830,168,502,384.82/1,318,551.78
  6. Step 6: Final answer
    x = 629,606.30

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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.