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Finding the Fourth Proportional to 605,840.70, 908,761.05 and 605,840.70

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Solution

The fourth proportional to 605,840.70, 908,761.05 and 605,840.70 is: 908,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,840.70 : 908,761.05 = 605,840.70 : x
  2. Step 2: Convert to fraction form
    605,840.70/908,761.05 = 605,840.70/x
  3. Step 3: Cross multiply
    605,840.70x = 908,761.05 × 605,840.70
  4. Step 4: Simplify right side
    605,840.70x = 550,564,430,664.74
  5. Step 5: Solve for x
    x = 550,564,430,664.74/605,840.70
  6. Step 6: Final answer
    x = 908,761.05

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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.