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Finding the Fourth Proportional to 326,097.80, 488,903.70 and 168,439.40

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Solution

The fourth proportional to 326,097.80, 488,903.70 and 168,439.40 is: 252,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,097.80 : 488,903.70 = 168,439.40 : x
  2. Step 2: Convert to fraction form
    326,097.80/488,903.70 = 168,439.40/x
  3. Step 3: Cross multiply
    326,097.80x = 488,903.70 × 168,439.40
  4. Step 4: Simplify right side
    326,097.80x = 82,350,645,885.78
  5. Step 5: Solve for x
    x = 82,350,645,885.78/326,097.80
  6. Step 6: Final answer
    x = 252,533.58

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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.