Home / 456,619.20-684,928.80-124,195.20

Finding the Fourth Proportional to 456,619.20, 684,928.80 and 124,195.20

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Solution

The fourth proportional to 456,619.20, 684,928.80 and 124,195.20 is: 186,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,619.20 : 684,928.80 = 124,195.20 : x
  2. Step 2: Convert to fraction form
    456,619.20/684,928.80 = 124,195.20/x
  3. Step 3: Cross multiply
    456,619.20x = 684,928.80 × 124,195.20
  4. Step 4: Simplify right side
    456,619.20x = 85,064,869,301.76
  5. Step 5: Solve for x
    x = 85,064,869,301.76/456,619.20
  6. Step 6: Final answer
    x = 186,292.80

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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.