Home / 856,838.60-1,285,257.90-436,934.60

Finding the Fourth Proportional to 856,838.60, 1,285,257.90 and 436,934.60

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Solution

The fourth proportional to 856,838.60, 1,285,257.90 and 436,934.60 is: 655,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,838.60 : 1,285,257.90 = 436,934.60 : x
  2. Step 2: Convert to fraction form
    856,838.60/1,285,257.90 = 436,934.60/x
  3. Step 3: Cross multiply
    856,838.60x = 1,285,257.90 × 436,934.60
  4. Step 4: Simplify right side
    856,838.60x = 561,573,646,433.34
  5. Step 5: Solve for x
    x = 561,573,646,433.34/856,838.60
  6. Step 6: Final answer
    x = 655,401.90

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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.