Home / 511,127.05-705,360.14-281,692.60

Finding the Fourth Proportional to 511,127.05, 705,360.14 and 281,692.60

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Solution

The fourth proportional to 511,127.05, 705,360.14 and 281,692.60 is: 388,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,127.05 : 705,360.14 = 281,692.60 : x
  2. Step 2: Convert to fraction form
    511,127.05/705,360.14 = 281,692.60/x
  3. Step 3: Cross multiply
    511,127.05x = 705,360.14 × 281,692.60
  4. Step 4: Simplify right side
    511,127.05x = 198,694,731,772.96
  5. Step 5: Solve for x
    x = 198,694,731,772.96/511,127.05
  6. Step 6: Final answer
    x = 388,738.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.