Home / 414,118.60-621,159.83-129,802.66

Finding the Fourth Proportional to 414,118.60, 621,159.83 and 129,802.66

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Solution

The fourth proportional to 414,118.60, 621,159.83 and 129,802.66 is: 194,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,118.60 : 621,159.83 = 129,802.66 : x
  2. Step 2: Convert to fraction form
    414,118.60/621,159.83 = 129,802.66/x
  3. Step 3: Cross multiply
    414,118.60x = 621,159.83 × 129,802.66
  4. Step 4: Simplify right side
    414,118.60x = 80,628,201,510.40
  5. Step 5: Solve for x
    x = 80,628,201,510.40/414,118.60
  6. Step 6: Final answer
    x = 194,698.33

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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.