Home / 685,371.15-1,028,166.88-235,981.53

Finding the Fourth Proportional to 685,371.15, 1,028,166.88 and 235,981.53

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Solution

The fourth proportional to 685,371.15, 1,028,166.88 and 235,981.53 is: 354,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,371.15 : 1,028,166.88 = 235,981.53 : x
  2. Step 2: Convert to fraction form
    685,371.15/1,028,166.88 = 235,981.53/x
  3. Step 3: Cross multiply
    685,371.15x = 1,028,166.88 × 235,981.53
  4. Step 4: Simplify right side
    685,371.15x = 242,628,393,437.73
  5. Step 5: Solve for x
    x = 242,628,393,437.73/685,371.15
  6. Step 6: Final answer
    x = 354,010.22

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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.