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Finding the Fourth Proportional to 321,035.40, 481,439.70 and 110,624.40

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Solution

The fourth proportional to 321,035.40, 481,439.70 and 110,624.40 is: 165,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,035.40 : 481,439.70 = 110,624.40 : x
  2. Step 2: Convert to fraction form
    321,035.40/481,439.70 = 110,624.40/x
  3. Step 3: Cross multiply
    321,035.40x = 481,439.70 × 110,624.40
  4. Step 4: Simplify right side
    321,035.40x = 53,258,977,948.68
  5. Step 5: Solve for x
    x = 53,258,977,948.68/321,035.40
  6. Step 6: Final answer
    x = 165,897.52

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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.