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Finding the Fourth Proportional to 605,842.70, 908,764.05 and 605,842.70

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Solution

The fourth proportional to 605,842.70, 908,764.05 and 605,842.70 is: 908,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,842.70 : 908,764.05 = 605,842.70 : x
  2. Step 2: Convert to fraction form
    605,842.70/908,764.05 = 605,842.70/x
  3. Step 3: Cross multiply
    605,842.70x = 908,764.05 × 605,842.70
  4. Step 4: Simplify right side
    605,842.70x = 550,568,065,714.94
  5. Step 5: Solve for x
    x = 550,568,065,714.94/605,842.70
  6. Step 6: Final answer
    x = 908,764.05

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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.