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Finding the Fourth Proportional to 621,753.69, 858,051.60 and 367,099.41

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Solution

The fourth proportional to 621,753.69, 858,051.60 and 367,099.41 is: 506,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,753.69 : 858,051.60 = 367,099.41 : x
  2. Step 2: Convert to fraction form
    621,753.69/858,051.60 = 367,099.41/x
  3. Step 3: Cross multiply
    621,753.69x = 858,051.60 × 367,099.41
  4. Step 4: Simplify right side
    621,753.69x = 314,990,236,109.56
  5. Step 5: Solve for x
    x = 314,990,236,109.56/621,753.69
  6. Step 6: Final answer
    x = 506,615.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.