Home / 456,414.30-684,621.45-190,086.30

Finding the Fourth Proportional to 456,414.30, 684,621.45 and 190,086.30

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Solution

The fourth proportional to 456,414.30, 684,621.45 and 190,086.30 is: 285,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,414.30 : 684,621.45 = 190,086.30 : x
  2. Step 2: Convert to fraction form
    456,414.30/684,621.45 = 190,086.30/x
  3. Step 3: Cross multiply
    456,414.30x = 684,621.45 × 190,086.30
  4. Step 4: Simplify right side
    456,414.30x = 130,137,158,331.14
  5. Step 5: Solve for x
    x = 130,137,158,331.14/456,414.30
  6. Step 6: Final answer
    x = 285,129.45

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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.