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Finding the Fourth Proportional to 328,673.60, 492,722.40 and 223,150.40

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Solution

The fourth proportional to 328,673.60, 492,722.40 and 223,150.40 is: 334,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,673.60 : 492,722.40 = 223,150.40 : x
  2. Step 2: Convert to fraction form
    328,673.60/492,722.40 = 223,150.40/x
  3. Step 3: Cross multiply
    328,673.60x = 492,722.40 × 223,150.40
  4. Step 4: Simplify right side
    328,673.60x = 109,951,200,648.96
  5. Step 5: Solve for x
    x = 109,951,200,648.96/328,673.60
  6. Step 6: Final answer
    x = 334,530.06

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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.