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Finding the Fourth Proportional to 403,614.87, 556,985.89 and 222,322.59

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Solution

The fourth proportional to 403,614.87, 556,985.89 and 222,322.59 is: 306,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,614.87 : 556,985.89 = 222,322.59 : x
  2. Step 2: Convert to fraction form
    403,614.87/556,985.89 = 222,322.59/x
  3. Step 3: Cross multiply
    403,614.87x = 556,985.89 × 222,322.59
  4. Step 4: Simplify right side
    403,614.87x = 123,830,545,658.26
  5. Step 5: Solve for x
    x = 123,830,545,658.26/403,614.87
  6. Step 6: Final answer
    x = 306,803.73

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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.