Home / 856,876.60-1,285,314.90-436,972.60

Finding the Fourth Proportional to 856,876.60, 1,285,314.90 and 436,972.60

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Solution

The fourth proportional to 856,876.60, 1,285,314.90 and 436,972.60 is: 655,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,876.60 : 1,285,314.90 = 436,972.60 : x
  2. Step 2: Convert to fraction form
    856,876.60/1,285,314.90 = 436,972.60/x
  3. Step 3: Cross multiply
    856,876.60x = 1,285,314.90 × 436,972.60
  4. Step 4: Simplify right side
    856,876.60x = 561,647,393,671.74
  5. Step 5: Solve for x
    x = 561,647,393,671.74/856,876.60
  6. Step 6: Final answer
    x = 655,458.90

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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.