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Finding the Fourth Proportional to 463,861.50, 640,128.87 and 262,696.38

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Solution

The fourth proportional to 463,861.50, 640,128.87 and 262,696.38 is: 362,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,861.50 : 640,128.87 = 262,696.38 : x
  2. Step 2: Convert to fraction form
    463,861.50/640,128.87 = 262,696.38/x
  3. Step 3: Cross multiply
    463,861.50x = 640,128.87 × 262,696.38
  4. Step 4: Simplify right side
    463,861.50x = 168,159,536,882.49
  5. Step 5: Solve for x
    x = 168,159,536,882.49/463,861.50
  6. Step 6: Final answer
    x = 362,521.00

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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.