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Finding the Fourth Proportional to 358,806.96, 538,211.20 and 336,885.02

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Solution

The fourth proportional to 358,806.96, 538,211.20 and 336,885.02 is: 505,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,806.96 : 538,211.20 = 336,885.02 : x
  2. Step 2: Convert to fraction form
    358,806.96/538,211.20 = 336,885.02/x
  3. Step 3: Cross multiply
    358,806.96x = 538,211.20 × 336,885.02
  4. Step 4: Simplify right side
    358,806.96x = 181,315,290,624.57
  5. Step 5: Solve for x
    x = 181,315,290,624.57/358,806.96
  6. Step 6: Final answer
    x = 505,328.24

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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.