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Finding the Fourth Proportional to 469,920.97, 648,336.54 and 265,951.63

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Solution

The fourth proportional to 469,920.97, 648,336.54 and 265,951.63 is: 366,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,920.97 : 648,336.54 = 265,951.63 : x
  2. Step 2: Convert to fraction form
    469,920.97/648,336.54 = 265,951.63/x
  3. Step 3: Cross multiply
    469,920.97x = 648,336.54 × 265,951.63
  4. Step 4: Simplify right side
    469,920.97x = 172,426,159,601.56
  5. Step 5: Solve for x
    x = 172,426,159,601.56/469,920.97
  6. Step 6: Final answer
    x = 366,925.87

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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.