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Finding the Fourth Proportional to 418,790.52, 577,928.30 and 227,804.67

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Solution

The fourth proportional to 418,790.52, 577,928.30 and 227,804.67 is: 314,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,790.52 : 577,928.30 = 227,804.67 : x
  2. Step 2: Convert to fraction form
    418,790.52/577,928.30 = 227,804.67/x
  3. Step 3: Cross multiply
    418,790.52x = 577,928.30 × 227,804.67
  4. Step 4: Simplify right side
    418,790.52x = 131,654,764,526.14
  5. Step 5: Solve for x
    x = 131,654,764,526.14/418,790.52
  6. Step 6: Final answer
    x = 314,369.02

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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.