Home / 816,937.60-1,225,885.92-343,586.56

Finding the Fourth Proportional to 816,937.60, 1,225,885.92 and 343,586.56

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Solution

The fourth proportional to 816,937.60, 1,225,885.92 and 343,586.56 is: 515,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,937.60 : 1,225,885.92 = 343,586.56 : x
  2. Step 2: Convert to fraction form
    816,937.60/1,225,885.92 = 343,586.56/x
  3. Step 3: Cross multiply
    816,937.60x = 1,225,885.92 × 343,586.56
  4. Step 4: Simplify right side
    816,937.60x = 421,197,926,205.24
  5. Step 5: Solve for x
    x = 421,197,926,205.24/816,937.60
  6. Step 6: Final answer
    x = 515,581.52

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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.