Home / 426,622.59-639,933.89-127,095.44

Finding the Fourth Proportional to 426,622.59, 639,933.89 and 127,095.44

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Solution

The fourth proportional to 426,622.59, 639,933.89 and 127,095.44 is: 190,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,622.59 : 639,933.89 = 127,095.44 : x
  2. Step 2: Convert to fraction form
    426,622.59/639,933.89 = 127,095.44/x
  3. Step 3: Cross multiply
    426,622.59x = 639,933.89 × 127,095.44
  4. Step 4: Simplify right side
    426,622.59x = 81,332,675,485.32
  5. Step 5: Solve for x
    x = 81,332,675,485.32/426,622.59
  6. Step 6: Final answer
    x = 190,643.15

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Similar ratio
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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.