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Finding the Fourth Proportional to 403,602.96, 556,951.50 and 222,310.98

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Solution

The fourth proportional to 403,602.96, 556,951.50 and 222,310.98 is: 306,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,602.96 : 556,951.50 = 222,310.98 : x
  2. Step 2: Convert to fraction form
    403,602.96/556,951.50 = 222,310.98/x
  3. Step 3: Cross multiply
    403,602.96x = 556,951.50 × 222,310.98
  4. Step 4: Simplify right side
    403,602.96x = 123,816,433,777.47
  5. Step 5: Solve for x
    x = 123,816,433,777.47/403,602.96
  6. Step 6: Final answer
    x = 306,777.81

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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.