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Finding the Fourth Proportional to 496,263, 744,295.68 and 141,279.96

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Solution

The fourth proportional to 496,263, 744,295.68 and 141,279.96 is: 211,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,263 : 744,295.68 = 141,279.96 : x
  2. Step 2: Convert to fraction form
    496,263/744,295.68 = 141,279.96/x
  3. Step 3: Cross multiply
    496,263x = 744,295.68 × 141,279.96
  4. Step 4: Simplify right side
    496,263x = 105,154,063,898.57
  5. Step 5: Solve for x
    x = 105,154,063,898.57/496,263
  6. Step 6: Final answer
    x = 211,891.81

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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.