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Finding the Fourth Proportional to 401,459.73, 553,924.69 and 229,322.67

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Solution

The fourth proportional to 401,459.73, 553,924.69 and 229,322.67 is: 316,414.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,459.73 : 553,924.69 = 229,322.67 : x
  2. Step 2: Convert to fraction form
    401,459.73/553,924.69 = 229,322.67/x
  3. Step 3: Cross multiply
    401,459.73x = 553,924.69 × 229,322.67
  4. Step 4: Simplify right side
    401,459.73x = 127,027,486,239.20
  5. Step 5: Solve for x
    x = 127,027,486,239.20/401,459.73
  6. Step 6: Final answer
    x = 316,414.02

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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.