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Finding the Fourth Proportional to 605,177.40, 907,766.10 and 161,945.40

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Solution

The fourth proportional to 605,177.40, 907,766.10 and 161,945.40 is: 242,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,177.40 : 907,766.10 = 161,945.40 : x
  2. Step 2: Convert to fraction form
    605,177.40/907,766.10 = 161,945.40/x
  3. Step 3: Cross multiply
    605,177.40x = 907,766.10 × 161,945.40
  4. Step 4: Simplify right side
    605,177.40x = 147,008,544,170.94
  5. Step 5: Solve for x
    x = 147,008,544,170.94/605,177.40
  6. Step 6: Final answer
    x = 242,918.10

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1.5x scale

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.