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Finding the Fourth Proportional to 523,993.80, 786,768.30 and 366,918.60

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Solution

The fourth proportional to 523,993.80, 786,768.30 and 366,918.60 is: 550,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,993.80 : 786,768.30 = 366,918.60 : x
  2. Step 2: Convert to fraction form
    523,993.80/786,768.30 = 366,918.60/x
  3. Step 3: Cross multiply
    523,993.80x = 786,768.30 × 366,918.60
  4. Step 4: Simplify right side
    523,993.80x = 288,679,923,160.38
  5. Step 5: Solve for x
    x = 288,679,923,160.38/523,993.80
  6. Step 6: Final answer
    x = 550,922.40

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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.