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Finding the Fourth Proportional to 401,460.44, 553,857.36 and 231,661.76

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Solution

The fourth proportional to 401,460.44, 553,857.36 and 231,661.76 is: 319,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,460.44 : 553,857.36 = 231,661.76 : x
  2. Step 2: Convert to fraction form
    401,460.44/553,857.36 = 231,661.76/x
  3. Step 3: Cross multiply
    401,460.44x = 553,857.36 × 231,661.76
  4. Step 4: Simplify right side
    401,460.44x = 128,307,570,806.55
  5. Step 5: Solve for x
    x = 128,307,570,806.55/401,460.44
  6. Step 6: Final answer
    x = 319,602.03

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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.