Home / 467,986.96-645,823.83-253,128.52

Finding the Fourth Proportional to 467,986.96, 645,823.83 and 253,128.52

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Solution

The fourth proportional to 467,986.96, 645,823.83 and 253,128.52 is: 349,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,986.96 : 645,823.83 = 253,128.52 : x
  2. Step 2: Convert to fraction form
    467,986.96/645,823.83 = 253,128.52/x
  3. Step 3: Cross multiply
    467,986.96x = 645,823.83 × 253,128.52
  4. Step 4: Simplify right side
    467,986.96x = 163,476,430,268.63
  5. Step 5: Solve for x
    x = 163,476,430,268.63/467,986.96
  6. Step 6: Final answer
    x = 349,318.34

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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.