Home / 521,515.26-719,631.54-292,040.64

Finding the Fourth Proportional to 521,515.26, 719,631.54 and 292,040.64

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Solution

The fourth proportional to 521,515.26, 719,631.54 and 292,040.64 is: 402,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,515.26 : 719,631.54 = 292,040.64 : x
  2. Step 2: Convert to fraction form
    521,515.26/719,631.54 = 292,040.64/x
  3. Step 3: Cross multiply
    521,515.26x = 719,631.54 × 292,040.64
  4. Step 4: Simplify right side
    521,515.26x = 210,161,655,505.79
  5. Step 5: Solve for x
    x = 210,161,655,505.79/521,515.26
  6. Step 6: Final answer
    x = 402,982.75

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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.