Home / 539,973.81-809,949.78-140,605.74

Finding the Fourth Proportional to 539,973.81, 809,949.78 and 140,605.74

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Solution

The fourth proportional to 539,973.81, 809,949.78 and 140,605.74 is: 210,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,973.81 : 809,949.78 = 140,605.74 : x
  2. Step 2: Convert to fraction form
    539,973.81/809,949.78 = 140,605.74/x
  3. Step 3: Cross multiply
    539,973.81x = 809,949.78 × 140,605.74
  4. Step 4: Simplify right side
    539,973.81x = 113,883,588,179.74
  5. Step 5: Solve for x
    x = 113,883,588,179.74/539,973.81
  6. Step 6: Final answer
    x = 210,905.76

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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.