Home / 519,149.40-778,869.90-252,918.60

Finding the Fourth Proportional to 519,149.40, 778,869.90 and 252,918.60

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Solution

The fourth proportional to 519,149.40, 778,869.90 and 252,918.60 is: 379,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,149.40 : 778,869.90 = 252,918.60 : x
  2. Step 2: Convert to fraction form
    519,149.40/778,869.90 = 252,918.60/x
  3. Step 3: Cross multiply
    519,149.40x = 778,869.90 × 252,918.60
  4. Step 4: Simplify right side
    519,149.40x = 196,990,684,690.14
  5. Step 5: Solve for x
    x = 196,990,684,690.14/519,149.40
  6. Step 6: Final answer
    x = 379,448.93

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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.