Home / 456,438.29-684,719.73-190,136.53

Finding the Fourth Proportional to 456,438.29, 684,719.73 and 190,136.53

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Solution

The fourth proportional to 456,438.29, 684,719.73 and 190,136.53 is: 285,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,438.29 : 684,719.73 = 190,136.53 : x
  2. Step 2: Convert to fraction form
    456,438.29/684,719.73 = 190,136.53/x
  3. Step 3: Cross multiply
    456,438.29x = 684,719.73 × 190,136.53
  4. Step 4: Simplify right side
    456,438.29x = 130,190,234,340.64
  5. Step 5: Solve for x
    x = 130,190,234,340.64/456,438.29
  6. Step 6: Final answer
    x = 285,230.74

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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.