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Finding the Fourth Proportional to 288,520,763,945.80, 403,103,504,667.80 and 288,520,763,945.80

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Solution

The fourth proportional to 288,520,763,945.80, 403,103,504,667.80 and 288,520,763,945.80 is: 403,103,504,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,520,763,945.80 : 403,103,504,667.80 = 288,520,763,945.80 : x
  2. Step 2: Convert to fraction form
    288,520,763,945.80/403,103,504,667.80 = 288,520,763,945.80/x
  3. Step 3: Cross multiply
    288,520,763,945.80x = 403,103,504,667.80 × 288,520,763,945.80
  4. Step 4: Simplify right side
    288,520,763,945.80x = 116,303,731,115,982,996,897,792
  5. Step 5: Solve for x
    x = 116,303,731,115,982,996,897,792/288,520,763,945.80
  6. Step 6: Final answer
    x = 403,103,504,667.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.