Home / 500,568.19-690,784.79-276,795.36

Finding the Fourth Proportional to 500,568.19, 690,784.79 and 276,795.36

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Solution

The fourth proportional to 500,568.19, 690,784.79 and 276,795.36 is: 381,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,568.19 : 690,784.79 = 276,795.36 : x
  2. Step 2: Convert to fraction form
    500,568.19/690,784.79 = 276,795.36/x
  3. Step 3: Cross multiply
    500,568.19x = 690,784.79 × 276,795.36
  4. Step 4: Simplify right side
    500,568.19x = 191,206,023,246.60
  5. Step 5: Solve for x
    x = 191,206,023,246.60/500,568.19
  6. Step 6: Final answer
    x = 381,977.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.