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Finding the Fourth Proportional to 508,461.02, 701,674.29 and 279,022.16

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Solution

The fourth proportional to 508,461.02, 701,674.29 and 279,022.16 is: 385,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,461.02 : 701,674.29 = 279,022.16 : x
  2. Step 2: Convert to fraction form
    508,461.02/701,674.29 = 279,022.16/x
  3. Step 3: Cross multiply
    508,461.02x = 701,674.29 × 279,022.16
  4. Step 4: Simplify right side
    508,461.02x = 195,782,672,503.90
  5. Step 5: Solve for x
    x = 195,782,672,503.90/508,461.02
  6. Step 6: Final answer
    x = 385,049.53

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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.