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Finding the Fourth Proportional to 367,719.63, 507,474.77 and 276,915.39

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Solution

The fourth proportional to 367,719.63, 507,474.77 and 276,915.39 is: 382,159.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,719.63 : 507,474.77 = 276,915.39 : x
  2. Step 2: Convert to fraction form
    367,719.63/507,474.77 = 276,915.39/x
  3. Step 3: Cross multiply
    367,719.63x = 507,474.77 × 276,915.39
  4. Step 4: Simplify right side
    367,719.63x = 140,527,572,465.13
  5. Step 5: Solve for x
    x = 140,527,572,465.13/367,719.63
  6. Step 6: Final answer
    x = 382,159.56

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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.