Home / 784,974.60-1,178,774.10-519,910.20

Finding the Fourth Proportional to 784,974.60, 1,178,774.10 and 519,910.20

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Solution

The fourth proportional to 784,974.60, 1,178,774.10 and 519,910.20 is: 780,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,974.60 : 1,178,774.10 = 519,910.20 : x
  2. Step 2: Convert to fraction form
    784,974.60/1,178,774.10 = 519,910.20/x
  3. Step 3: Cross multiply
    784,974.60x = 1,178,774.10 × 519,910.20
  4. Step 4: Simplify right side
    784,974.60x = 612,856,678,085.82
  5. Step 5: Solve for x
    x = 612,856,678,085.82/784,974.60
  6. Step 6: Final answer
    x = 780,734.41

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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.