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Finding the Fourth Proportional to 303,605.92, 418,992.40 and 176,321.44

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Solution

The fourth proportional to 303,605.92, 418,992.40 and 176,321.44 is: 243,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,605.92 : 418,992.40 = 176,321.44 : x
  2. Step 2: Convert to fraction form
    303,605.92/418,992.40 = 176,321.44/x
  3. Step 3: Cross multiply
    303,605.92x = 418,992.40 × 176,321.44
  4. Step 4: Simplify right side
    303,605.92x = 73,877,343,317.06
  5. Step 5: Solve for x
    x = 73,877,343,317.06/303,605.92
  6. Step 6: Final answer
    x = 243,333.01

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1.5x scale

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.