Home / 1,318,912.07-1,977,038.89-519,884.33

Finding the Fourth Proportional to 1,318,912.07, 1,977,038.89 and 519,884.33

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Solution

The fourth proportional to 1,318,912.07, 1,977,038.89 and 519,884.33 is: 779,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,912.07 : 1,977,038.89 = 519,884.33 : x
  2. Step 2: Convert to fraction form
    1,318,912.07/1,977,038.89 = 519,884.33/x
  3. Step 3: Cross multiply
    1,318,912.07x = 1,977,038.89 × 519,884.33
  4. Step 4: Simplify right side
    1,318,912.07x = 1,027,831,527,526.69
  5. Step 5: Solve for x
    x = 1,027,831,527,526.69/1,318,912.07
  6. Step 6: Final answer
    x = 779,302.54

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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.