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Finding the Fourth Proportional to 662,708.10, 994,580.55 and 307,766.10

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Solution

The fourth proportional to 662,708.10, 994,580.55 and 307,766.10 is: 461,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,708.10 : 994,580.55 = 307,766.10 : x
  2. Step 2: Convert to fraction form
    662,708.10/994,580.55 = 307,766.10/x
  3. Step 3: Cross multiply
    662,708.10x = 994,580.55 × 307,766.10
  4. Step 4: Simplify right side
    662,708.10x = 306,098,177,009.36
  5. Step 5: Solve for x
    x = 306,098,177,009.36/662,708.10
  6. Step 6: Final answer
    x = 461,889.90

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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.