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Finding the Fourth Proportional to 401,344.68, 553,880.53 and 222,496.68

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Solution

The fourth proportional to 401,344.68, 553,880.53 and 222,496.68 is: 307,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,344.68 : 553,880.53 = 222,496.68 : x
  2. Step 2: Convert to fraction form
    401,344.68/553,880.53 = 222,496.68/x
  3. Step 3: Cross multiply
    401,344.68x = 553,880.53 × 222,496.68
  4. Step 4: Simplify right side
    401,344.68x = 123,236,579,041.64
  5. Step 5: Solve for x
    x = 123,236,579,041.64/401,344.68
  6. Step 6: Final answer
    x = 307,059.21

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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.