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Finding the Fourth Proportional to 435,328.20, 652,992.30 and 119,784.60

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Solution

The fourth proportional to 435,328.20, 652,992.30 and 119,784.60 is: 179,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,328.20 : 652,992.30 = 119,784.60 : x
  2. Step 2: Convert to fraction form
    435,328.20/652,992.30 = 119,784.60/x
  3. Step 3: Cross multiply
    435,328.20x = 652,992.30 × 119,784.60
  4. Step 4: Simplify right side
    435,328.20x = 78,218,421,458.58
  5. Step 5: Solve for x
    x = 78,218,421,458.58/435,328.20
  6. Step 6: Final answer
    x = 179,676.90

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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.