Home / 685,376.52-1,028,174.94-235,986.90

Finding the Fourth Proportional to 685,376.52, 1,028,174.94 and 235,986.90

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Solution

The fourth proportional to 685,376.52, 1,028,174.94 and 235,986.90 is: 354,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,376.52 : 1,028,174.94 = 235,986.90 : x
  2. Step 2: Convert to fraction form
    685,376.52/1,028,174.94 = 235,986.90/x
  3. Step 3: Cross multiply
    685,376.52x = 1,028,174.94 × 235,986.90
  4. Step 4: Simplify right side
    685,376.52x = 242,635,816,748.29
  5. Step 5: Solve for x
    x = 242,635,816,748.29/685,376.52
  6. Step 6: Final answer
    x = 354,018.28

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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.