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Finding the Fourth Proportional to 358,756.09, 538,134.82 and 336,834.15

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Solution

The fourth proportional to 358,756.09, 538,134.82 and 336,834.15 is: 505,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,756.09 : 538,134.82 = 336,834.15 : x
  2. Step 2: Convert to fraction form
    358,756.09/538,134.82 = 336,834.15/x
  3. Step 3: Cross multiply
    358,756.09x = 538,134.82 × 336,834.15
  4. Step 4: Simplify right side
    358,756.09x = 181,262,184,680.10
  5. Step 5: Solve for x
    x = 181,262,184,680.10/358,756.09
  6. Step 6: Final answer
    x = 505,251.87

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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.