Home / 663,679.20-995,518.80-190,322.40

Finding the Fourth Proportional to 663,679.20, 995,518.80 and 190,322.40

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Solution

The fourth proportional to 663,679.20, 995,518.80 and 190,322.40 is: 285,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,679.20 : 995,518.80 = 190,322.40 : x
  2. Step 2: Convert to fraction form
    663,679.20/995,518.80 = 190,322.40/x
  3. Step 3: Cross multiply
    663,679.20x = 995,518.80 × 190,322.40
  4. Step 4: Simplify right side
    663,679.20x = 189,469,527,261.12
  5. Step 5: Solve for x
    x = 189,469,527,261.12/663,679.20
  6. Step 6: Final answer
    x = 285,483.60

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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.