Home / 1,318,898.30-1,977,313.94-520,777.25

Finding the Fourth Proportional to 1,318,898.30, 1,977,313.94 and 520,777.25

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Solution

The fourth proportional to 1,318,898.30, 1,977,313.94 and 520,777.25 is: 780,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,898.30 : 1,977,313.94 = 520,777.25 : x
  2. Step 2: Convert to fraction form
    1,318,898.30/1,977,313.94 = 520,777.25/x
  3. Step 3: Cross multiply
    1,318,898.30x = 1,977,313.94 × 520,777.25
  4. Step 4: Simplify right side
    1,318,898.30x = 1,029,740,103,569.41
  5. Step 5: Solve for x
    x = 1,029,740,103,569.41/1,318,898.30
  6. Step 6: Final answer
    x = 780,757.78

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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.