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Finding the Fourth Proportional to 380,624.40, 570,161.52 and 180,337.68

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Solution

The fourth proportional to 380,624.40, 570,161.52 and 180,337.68 is: 270,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,624.40 : 570,161.52 = 180,337.68 : x
  2. Step 2: Convert to fraction form
    380,624.40/570,161.52 = 180,337.68/x
  3. Step 3: Cross multiply
    380,624.40x = 570,161.52 × 180,337.68
  4. Step 4: Simplify right side
    380,624.40x = 102,821,605,742.07
  5. Step 5: Solve for x
    x = 102,821,605,742.07/380,624.40
  6. Step 6: Final answer
    x = 270,139.29

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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.