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Finding the Fourth Proportional to 508,193.92, 701,336.64 and 307,054.72

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Solution

The fourth proportional to 508,193.92, 701,336.64 and 307,054.72 is: 423,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,193.92 : 701,336.64 = 307,054.72 : x
  2. Step 2: Convert to fraction form
    508,193.92/701,336.64 = 307,054.72/x
  3. Step 3: Cross multiply
    508,193.92x = 701,336.64 × 307,054.72
  4. Step 4: Simplify right side
    508,193.92x = 215,348,725,620.94
  5. Step 5: Solve for x
    x = 215,348,725,620.94/508,193.92
  6. Step 6: Final answer
    x = 423,753.05

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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.