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Finding the Fourth Proportional to 454,422.40, 681,633.60 and 410,185.60

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Solution

The fourth proportional to 454,422.40, 681,633.60 and 410,185.60 is: 615,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,422.40 : 681,633.60 = 410,185.60 : x
  2. Step 2: Convert to fraction form
    454,422.40/681,633.60 = 410,185.60/x
  3. Step 3: Cross multiply
    454,422.40x = 681,633.60 × 410,185.60
  4. Step 4: Simplify right side
    454,422.40x = 279,596,287,196.16
  5. Step 5: Solve for x
    x = 279,596,287,196.16/454,422.40
  6. Step 6: Final answer
    x = 615,278.40

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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.