Home / 539,016.20-808,526.70-139,628.60

Finding the Fourth Proportional to 539,016.20, 808,526.70 and 139,628.60

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Solution

The fourth proportional to 539,016.20, 808,526.70 and 139,628.60 is: 209,443.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,016.20 : 808,526.70 = 139,628.60 : x
  2. Step 2: Convert to fraction form
    539,016.20/808,526.70 = 139,628.60/x
  3. Step 3: Cross multiply
    539,016.20x = 808,526.70 × 139,628.60
  4. Step 4: Simplify right side
    539,016.20x = 112,893,451,183.62
  5. Step 5: Solve for x
    x = 112,893,451,183.62/539,016.20
  6. Step 6: Final answer
    x = 209,443.52

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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.