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Finding the Fourth Proportional to 587,235.42, 810,346.50 and 345,471.28

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Solution

The fourth proportional to 587,235.42, 810,346.50 and 345,471.28 is: 476,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,235.42 : 810,346.50 = 345,471.28 : x
  2. Step 2: Convert to fraction form
    587,235.42/810,346.50 = 345,471.28/x
  3. Step 3: Cross multiply
    587,235.42x = 810,346.50 × 345,471.28
  4. Step 4: Simplify right side
    587,235.42x = 279,951,442,598.52
  5. Step 5: Solve for x
    x = 279,951,442,598.52/587,235.42
  6. Step 6: Final answer
    x = 476,727.79

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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.