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Finding the Fourth Proportional to 665,313.92, 997,861.68 and 185,574.36

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Solution

The fourth proportional to 665,313.92, 997,861.68 and 185,574.36 is: 278,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,313.92 : 997,861.68 = 185,574.36 : x
  2. Step 2: Convert to fraction form
    665,313.92/997,861.68 = 185,574.36/x
  3. Step 3: Cross multiply
    665,313.92x = 997,861.68 × 185,574.36
  4. Step 4: Simplify right side
    665,313.92x = 185,177,540,763.53
  5. Step 5: Solve for x
    x = 185,177,540,763.53/665,313.92
  6. Step 6: Final answer
    x = 278,331.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.