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Finding the Fourth Proportional to 303,905.52, 419,389.92 and 176,589.72

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Solution

The fourth proportional to 303,905.52, 419,389.92 and 176,589.72 is: 243,693.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,905.52 : 419,389.92 = 176,589.72 : x
  2. Step 2: Convert to fraction form
    303,905.52/419,389.92 = 176,589.72/x
  3. Step 3: Cross multiply
    303,905.52x = 419,389.92 × 176,589.72
  4. Step 4: Simplify right side
    303,905.52x = 74,059,948,543.62
  5. Step 5: Solve for x
    x = 74,059,948,543.62/303,905.52
  6. Step 6: Final answer
    x = 243,693.99

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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.