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Finding the Fourth Proportional to 353,182.56, 487,388.24 and 262,942.08

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Solution

The fourth proportional to 353,182.56, 487,388.24 and 262,942.08 is: 362,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,182.56 : 487,388.24 = 262,942.08 : x
  2. Step 2: Convert to fraction form
    353,182.56/487,388.24 = 262,942.08/x
  3. Step 3: Cross multiply
    353,182.56x = 487,388.24 × 262,942.08
  4. Step 4: Simplify right side
    353,182.56x = 128,154,877,593.14
  5. Step 5: Solve for x
    x = 128,154,877,593.14/353,182.56
  6. Step 6: Final answer
    x = 362,857.32

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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.