Home / 785,660.54-1,179,007.58-430,923.38

Finding the Fourth Proportional to 785,660.54, 1,179,007.58 and 430,923.38

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Solution

The fourth proportional to 785,660.54, 1,179,007.58 and 430,923.38 is: 646,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,660.54 : 1,179,007.58 = 430,923.38 : x
  2. Step 2: Convert to fraction form
    785,660.54/1,179,007.58 = 430,923.38/x
  3. Step 3: Cross multiply
    785,660.54x = 1,179,007.58 × 430,923.38
  4. Step 4: Simplify right side
    785,660.54x = 508,061,926,601.49
  5. Step 5: Solve for x
    x = 508,061,926,601.49/785,660.54
  6. Step 6: Final answer
    x = 646,668.51

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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.