Home / 457,153.38-685,675.46-120,220.28

Finding the Fourth Proportional to 457,153.38, 685,675.46 and 120,220.28

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Solution

The fourth proportional to 457,153.38, 685,675.46 and 120,220.28 is: 180,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,153.38 : 685,675.46 = 120,220.28 : x
  2. Step 2: Convert to fraction form
    457,153.38/685,675.46 = 120,220.28/x
  3. Step 3: Cross multiply
    457,153.38x = 685,675.46 × 120,220.28
  4. Step 4: Simplify right side
    457,153.38x = 82,432,095,790.33
  5. Step 5: Solve for x
    x = 82,432,095,790.33/457,153.38
  6. Step 6: Final answer
    x = 180,316.06

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1.5x scale

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.