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Finding the Fourth Proportional to 804,681,777.60, 1,206,066,072.60 and 722,414,710.80

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Solution

The fourth proportional to 804,681,777.60, 1,206,066,072.60 and 722,414,710.80 is: 1,082,763,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,681,777.60 : 1,206,066,072.60 = 722,414,710.80 : x
  2. Step 2: Convert to fraction form
    804,681,777.60/1,206,066,072.60 = 722,414,710.80/x
  3. Step 3: Cross multiply
    804,681,777.60x = 1,206,066,072.60 × 722,414,710.80
  4. Step 4: Simplify right side
    804,681,777.60x = 871,279,873,043,020,672
  5. Step 5: Solve for x
    x = 871,279,873,043,020,672/804,681,777.60
  6. Step 6: Final answer
    x = 1,082,763,270.27

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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.