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Finding the Fourth Proportional to 367,515.20, 551,272.80 and 118,222.40

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Solution

The fourth proportional to 367,515.20, 551,272.80 and 118,222.40 is: 177,333.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,515.20 : 551,272.80 = 118,222.40 : x
  2. Step 2: Convert to fraction form
    367,515.20/551,272.80 = 118,222.40/x
  3. Step 3: Cross multiply
    367,515.20x = 551,272.80 × 118,222.40
  4. Step 4: Simplify right side
    367,515.20x = 65,172,793,470.72
  5. Step 5: Solve for x
    x = 65,172,793,470.72/367,515.20
  6. Step 6: Final answer
    x = 177,333.60

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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.