Home / 393,941.40-591,057.90-127,710.60

Finding the Fourth Proportional to 393,941.40, 591,057.90 and 127,710.60

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Solution

The fourth proportional to 393,941.40, 591,057.90 and 127,710.60 is: 191,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,941.40 : 591,057.90 = 127,710.60 : x
  2. Step 2: Convert to fraction form
    393,941.40/591,057.90 = 127,710.60/x
  3. Step 3: Cross multiply
    393,941.40x = 591,057.90 × 127,710.60
  4. Step 4: Simplify right side
    393,941.40x = 75,484,359,043.74
  5. Step 5: Solve for x
    x = 75,484,359,043.74/393,941.40
  6. Step 6: Final answer
    x = 191,613.17

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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.