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Finding the Fourth Proportional to 410,015.60, 615,023.40 and 327,071.60

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Solution

The fourth proportional to 410,015.60, 615,023.40 and 327,071.60 is: 490,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,015.60 : 615,023.40 = 327,071.60 : x
  2. Step 2: Convert to fraction form
    410,015.60/615,023.40 = 327,071.60/x
  3. Step 3: Cross multiply
    410,015.60x = 615,023.40 × 327,071.60
  4. Step 4: Simplify right side
    410,015.60x = 201,156,687,475.44
  5. Step 5: Solve for x
    x = 201,156,687,475.44/410,015.60
  6. Step 6: Final answer
    x = 490,607.40

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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.