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Finding the Fourth Proportional to 348,343.38, 480,707.64 and 195,381.90

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Solution

The fourth proportional to 348,343.38, 480,707.64 and 195,381.90 is: 269,623.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,343.38 : 480,707.64 = 195,381.90 : x
  2. Step 2: Convert to fraction form
    348,343.38/480,707.64 = 195,381.90/x
  3. Step 3: Cross multiply
    348,343.38x = 480,707.64 × 195,381.90
  4. Step 4: Simplify right side
    348,343.38x = 93,921,572,047.72
  5. Step 5: Solve for x
    x = 93,921,572,047.72/348,343.38
  6. Step 6: Final answer
    x = 269,623.53

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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.