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Finding the Fourth Proportional to 441,687, 662,530.50 and 109,263

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Solution

The fourth proportional to 441,687, 662,530.50 and 109,263 is: 163,894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,687 : 662,530.50 = 109,263 : x
  2. Step 2: Convert to fraction form
    441,687/662,530.50 = 109,263/x
  3. Step 3: Cross multiply
    441,687x = 662,530.50 × 109,263
  4. Step 4: Simplify right side
    441,687x = 72,390,070,021.50
  5. Step 5: Solve for x
    x = 72,390,070,021.50/441,687
  6. Step 6: Final answer
    x = 163,894.50

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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.