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Finding the Fourth Proportional to 367,080.55, 550,456.80 and 142,366.30

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Solution

The fourth proportional to 367,080.55, 550,456.80 and 142,366.30 is: 213,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,080.55 : 550,456.80 = 142,366.30 : x
  2. Step 2: Convert to fraction form
    367,080.55/550,456.80 = 142,366.30/x
  3. Step 3: Cross multiply
    367,080.55x = 550,456.80 × 142,366.30
  4. Step 4: Simplify right side
    367,080.55x = 78,366,497,925.84
  5. Step 5: Solve for x
    x = 78,366,497,925.84/367,080.55
  6. Step 6: Final answer
    x = 213,485.84

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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.