Home / 685,306.16-1,028,028.09-235,967.57

Finding the Fourth Proportional to 685,306.16, 1,028,028.09 and 235,967.57

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Solution

The fourth proportional to 685,306.16, 1,028,028.09 and 235,967.57 is: 353,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,306.16 : 1,028,028.09 = 235,967.57 : x
  2. Step 2: Convert to fraction form
    685,306.16/1,028,028.09 = 235,967.57/x
  3. Step 3: Cross multiply
    685,306.16x = 1,028,028.09 × 235,967.57
  4. Step 4: Simplify right side
    685,306.16x = 242,581,289,888.89
  5. Step 5: Solve for x
    x = 242,581,289,888.89/685,306.16
  6. Step 6: Final answer
    x = 353,975.06

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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.