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Finding the Fourth Proportional to 344,790.41, 475,876.28 and 215,788.86

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Solution

The fourth proportional to 344,790.41, 475,876.28 and 215,788.86 is: 297,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,790.41 : 475,876.28 = 215,788.86 : x
  2. Step 2: Convert to fraction form
    344,790.41/475,876.28 = 215,788.86/x
  3. Step 3: Cross multiply
    344,790.41x = 475,876.28 × 215,788.86
  4. Step 4: Simplify right side
    344,790.41x = 102,688,800,501.71
  5. Step 5: Solve for x
    x = 102,688,800,501.71/344,790.41
  6. Step 6: Final answer
    x = 297,829.64

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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.