Home / 318,936.96-439,957.44-223,585.92

Finding the Fourth Proportional to 318,936.96, 439,957.44 and 223,585.92

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Solution

The fourth proportional to 318,936.96, 439,957.44 and 223,585.92 is: 308,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,936.96 : 439,957.44 = 223,585.92 : x
  2. Step 2: Convert to fraction form
    318,936.96/439,957.44 = 223,585.92/x
  3. Step 3: Cross multiply
    318,936.96x = 439,957.44 × 223,585.92
  4. Step 4: Simplify right side
    318,936.96x = 98,368,288,983.24
  5. Step 5: Solve for x
    x = 98,368,288,983.24/318,936.96
  6. Step 6: Final answer
    x = 308,425.49

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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.