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Finding the Fourth Proportional to 406,364.72, 560,777.12 and 222,601.80

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Solution

The fourth proportional to 406,364.72, 560,777.12 and 222,601.80 is: 307,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,364.72 : 560,777.12 = 222,601.80 : x
  2. Step 2: Convert to fraction form
    406,364.72/560,777.12 = 222,601.80/x
  3. Step 3: Cross multiply
    406,364.72x = 560,777.12 × 222,601.80
  4. Step 4: Simplify right side
    406,364.72x = 124,829,996,310.82
  5. Step 5: Solve for x
    x = 124,829,996,310.82/406,364.72
  6. Step 6: Final answer
    x = 307,187.09

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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.