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Finding the Fourth Proportional to 375,690.36, 518,505.87 and 232,496.55

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Solution

The fourth proportional to 375,690.36, 518,505.87 and 232,496.55 is: 320,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,690.36 : 518,505.87 = 232,496.55 : x
  2. Step 2: Convert to fraction form
    375,690.36/518,505.87 = 232,496.55/x
  3. Step 3: Cross multiply
    375,690.36x = 518,505.87 × 232,496.55
  4. Step 4: Simplify right side
    375,690.36x = 120,550,825,929.75
  5. Step 5: Solve for x
    x = 120,550,825,929.75/375,690.36
  6. Step 6: Final answer
    x = 320,878.15

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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.