Home / 1,318,404.69-1,977,796.44-407,658.06

Finding the Fourth Proportional to 1,318,404.69, 1,977,796.44 and 407,658.06

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Solution

The fourth proportional to 1,318,404.69, 1,977,796.44 and 407,658.06 is: 611,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,404.69 : 1,977,796.44 = 407,658.06 : x
  2. Step 2: Convert to fraction form
    1,318,404.69/1,977,796.44 = 407,658.06/x
  3. Step 3: Cross multiply
    1,318,404.69x = 1,977,796.44 × 407,658.06
  4. Step 4: Simplify right side
    1,318,404.69x = 806,264,659,805.31
  5. Step 5: Solve for x
    x = 806,264,659,805.31/1,318,404.69
  6. Step 6: Final answer
    x = 611,545.66

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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.