Home / 661,563.95-992,078.79-256,542.90

Finding the Fourth Proportional to 661,563.95, 992,078.79 and 256,542.90

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Solution

The fourth proportional to 661,563.95, 992,078.79 and 256,542.90 is: 384,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,563.95 : 992,078.79 = 256,542.90 : x
  2. Step 2: Convert to fraction form
    661,563.95/992,078.79 = 256,542.90/x
  3. Step 3: Cross multiply
    661,563.95x = 992,078.79 × 256,542.90
  4. Step 4: Simplify right side
    661,563.95x = 254,510,769,815.09
  5. Step 5: Solve for x
    x = 254,510,769,815.09/661,563.95
  6. Step 6: Final answer
    x = 384,710.76

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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.