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Finding the Fourth Proportional to 358,892.70, 538,339.86 and 336,970.86

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Solution

The fourth proportional to 358,892.70, 538,339.86 and 336,970.86 is: 505,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,892.70 : 538,339.86 = 336,970.86 : x
  2. Step 2: Convert to fraction form
    358,892.70/538,339.86 = 336,970.86/x
  3. Step 3: Cross multiply
    358,892.70x = 538,339.86 × 336,970.86
  4. Step 4: Simplify right side
    358,892.70x = 181,404,845,596.48
  5. Step 5: Solve for x
    x = 181,404,845,596.48/358,892.70
  6. Step 6: Final answer
    x = 505,457.05

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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.