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Finding the Fourth Proportional to 410,154.40, 615,231.60 and 223,069.60

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Solution

The fourth proportional to 410,154.40, 615,231.60 and 223,069.60 is: 334,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,154.40 : 615,231.60 = 223,069.60 : x
  2. Step 2: Convert to fraction form
    410,154.40/615,231.60 = 223,069.60/x
  3. Step 3: Cross multiply
    410,154.40x = 615,231.60 × 223,069.60
  4. Step 4: Simplify right side
    410,154.40x = 137,239,466,919.36
  5. Step 5: Solve for x
    x = 137,239,466,919.36/410,154.40
  6. Step 6: Final answer
    x = 334,604.40

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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.