Home / 762,769-1,052,621.22-423,291.88

Finding the Fourth Proportional to 762,769, 1,052,621.22 and 423,291.88

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Solution

The fourth proportional to 762,769, 1,052,621.22 and 423,291.88 is: 584,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,769 : 1,052,621.22 = 423,291.88 : x
  2. Step 2: Convert to fraction form
    762,769/1,052,621.22 = 423,291.88/x
  3. Step 3: Cross multiply
    762,769x = 1,052,621.22 × 423,291.88
  4. Step 4: Simplify right side
    762,769x = 445,566,015,141.69
  5. Step 5: Solve for x
    x = 445,566,015,141.69/762,769
  6. Step 6: Final answer
    x = 584,142.79

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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.