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Finding the Fourth Proportional to 451,707.61, 623,352.25 and 247,754.35

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Solution

The fourth proportional to 451,707.61, 623,352.25 and 247,754.35 is: 341,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,707.61 : 623,352.25 = 247,754.35 : x
  2. Step 2: Convert to fraction form
    451,707.61/623,352.25 = 247,754.35/x
  3. Step 3: Cross multiply
    451,707.61x = 623,352.25 × 247,754.35
  4. Step 4: Simplify right side
    451,707.61x = 154,438,231,519.79
  5. Step 5: Solve for x
    x = 154,438,231,519.79/451,707.61
  6. Step 6: Final answer
    x = 341,898.67

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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.