Home / 457,209.20-685,703.50-190,825.31

Finding the Fourth Proportional to 457,209.20, 685,703.50 and 190,825.31

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Solution

The fourth proportional to 457,209.20, 685,703.50 and 190,825.31 is: 286,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,209.20 : 685,703.50 = 190,825.31 : x
  2. Step 2: Convert to fraction form
    457,209.20/685,703.50 = 190,825.31/x
  3. Step 3: Cross multiply
    457,209.20x = 685,703.50 × 190,825.31
  4. Step 4: Simplify right side
    457,209.20x = 130,849,582,955.59
  5. Step 5: Solve for x
    x = 130,849,582,955.59/457,209.20
  6. Step 6: Final answer
    x = 286,191.93

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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.