Home / 622,705,114.80-934,057,672.20-393,689,473.20

Finding the Fourth Proportional to 622,705,114.80, 934,057,672.20 and 393,689,473.20

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Solution

The fourth proportional to 622,705,114.80, 934,057,672.20 and 393,689,473.20 is: 590,534,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,705,114.80 : 934,057,672.20 = 393,689,473.20 : x
  2. Step 2: Convert to fraction form
    622,705,114.80/934,057,672.20 = 393,689,473.20/x
  3. Step 3: Cross multiply
    622,705,114.80x = 934,057,672.20 × 393,689,473.20
  4. Step 4: Simplify right side
    622,705,114.80x = 367,728,672,906,836,288
  5. Step 5: Solve for x
    x = 367,728,672,906,836,288/622,705,114.80
  6. Step 6: Final answer
    x = 590,534,209.80

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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.