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Finding the Fourth Proportional to 469,951.61, 648,533.99 and 255,091.61

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Solution

The fourth proportional to 469,951.61, 648,533.99 and 255,091.61 is: 352,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,951.61 : 648,533.99 = 255,091.61 : x
  2. Step 2: Convert to fraction form
    469,951.61/648,533.99 = 255,091.61/x
  3. Step 3: Cross multiply
    469,951.61x = 648,533.99 × 255,091.61
  4. Step 4: Simplify right side
    469,951.61x = 165,435,581,907.89
  5. Step 5: Solve for x
    x = 165,435,581,907.89/469,951.61
  6. Step 6: Final answer
    x = 352,026.85

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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.