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Finding the Fourth Proportional to 406,453.95, 560,940.90 and 225,222.73

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Solution

The fourth proportional to 406,453.95, 560,940.90 and 225,222.73 is: 310,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,453.95 : 560,940.90 = 225,222.73 : x
  2. Step 2: Convert to fraction form
    406,453.95/560,940.90 = 225,222.73/x
  3. Step 3: Cross multiply
    406,453.95x = 560,940.90 × 225,222.73
  4. Step 4: Simplify right side
    406,453.95x = 126,336,638,619.72
  5. Step 5: Solve for x
    x = 126,336,638,619.72/406,453.95
  6. Step 6: Final answer
    x = 310,826.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.