Home / 519,111.40-778,812.90-252,880.60

Finding the Fourth Proportional to 519,111.40, 778,812.90 and 252,880.60

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Solution

The fourth proportional to 519,111.40, 778,812.90 and 252,880.60 is: 379,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,111.40 : 778,812.90 = 252,880.60 : x
  2. Step 2: Convert to fraction form
    519,111.40/778,812.90 = 252,880.60/x
  3. Step 3: Cross multiply
    519,111.40x = 778,812.90 × 252,880.60
  4. Step 4: Simplify right side
    519,111.40x = 196,946,673,439.74
  5. Step 5: Solve for x
    x = 196,946,673,439.74/519,111.40
  6. Step 6: Final answer
    x = 379,391.93

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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.