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Finding the Fourth Proportional to 377,911.20, 566,866.80 and 111,680.40

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Solution

The fourth proportional to 377,911.20, 566,866.80 and 111,680.40 is: 167,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,911.20 : 566,866.80 = 111,680.40 : x
  2. Step 2: Convert to fraction form
    377,911.20/566,866.80 = 111,680.40/x
  3. Step 3: Cross multiply
    377,911.20x = 566,866.80 × 111,680.40
  4. Step 4: Simplify right side
    377,911.20x = 63,307,910,970.72
  5. Step 5: Solve for x
    x = 63,307,910,970.72/377,911.20
  6. Step 6: Final answer
    x = 167,520.60

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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.