Home / 519,122.90-778,830.15-252,892.10

Finding the Fourth Proportional to 519,122.90, 778,830.15 and 252,892.10

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Solution

The fourth proportional to 519,122.90, 778,830.15 and 252,892.10 is: 379,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,122.90 : 778,830.15 = 252,892.10 : x
  2. Step 2: Convert to fraction form
    519,122.90/778,830.15 = 252,892.10/x
  3. Step 3: Cross multiply
    519,122.90x = 778,830.15 × 252,892.10
  4. Step 4: Simplify right side
    519,122.90x = 196,959,992,176.82
  5. Step 5: Solve for x
    x = 196,959,992,176.82/519,122.90
  6. Step 6: Final answer
    x = 379,409.18

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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.