Home / 539,974.81-809,951.28-140,606.74

Finding the Fourth Proportional to 539,974.81, 809,951.28 and 140,606.74

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Solution

The fourth proportional to 539,974.81, 809,951.28 and 140,606.74 is: 210,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,974.81 : 809,951.28 = 140,606.74 : x
  2. Step 2: Convert to fraction form
    539,974.81/809,951.28 = 140,606.74/x
  3. Step 3: Cross multiply
    539,974.81x = 809,951.28 × 140,606.74
  4. Step 4: Simplify right side
    539,974.81x = 113,884,609,039.63
  5. Step 5: Solve for x
    x = 113,884,609,039.63/539,974.81
  6. Step 6: Final answer
    x = 210,907.26

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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.