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Finding the Fourth Proportional to 251,425.80, 377,138.70 and 223,869.60

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Solution

The fourth proportional to 251,425.80, 377,138.70 and 223,869.60 is: 335,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,425.80 : 377,138.70 = 223,869.60 : x
  2. Step 2: Convert to fraction form
    251,425.80/377,138.70 = 223,869.60/x
  3. Step 3: Cross multiply
    251,425.80x = 377,138.70 × 223,869.60
  4. Step 4: Simplify right side
    251,425.80x = 84,429,889,913.52
  5. Step 5: Solve for x
    x = 84,429,889,913.52/251,425.80
  6. Step 6: Final answer
    x = 335,804.40

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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.