Home / 391,273.12-586,985.52-166,629.76

Finding the Fourth Proportional to 391,273.12, 586,985.52 and 166,629.76

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Solution

The fourth proportional to 391,273.12, 586,985.52 and 166,629.76 is: 249,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,273.12 : 586,985.52 = 166,629.76 : x
  2. Step 2: Convert to fraction form
    391,273.12/586,985.52 = 166,629.76/x
  3. Step 3: Cross multiply
    391,273.12x = 586,985.52 × 166,629.76
  4. Step 4: Simplify right side
    391,273.12x = 97,809,256,321.08
  5. Step 5: Solve for x
    x = 97,809,256,321.08/391,273.12
  6. Step 6: Final answer
    x = 249,976.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.