Home / 440,965.28-607,968.96-285,642.56

Finding the Fourth Proportional to 440,965.28, 607,968.96 and 285,642.56

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Solution

The fourth proportional to 440,965.28, 607,968.96 and 285,642.56 is: 393,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,965.28 : 607,968.96 = 285,642.56 : x
  2. Step 2: Convert to fraction form
    440,965.28/607,968.96 = 285,642.56/x
  3. Step 3: Cross multiply
    440,965.28x = 607,968.96 × 285,642.56
  4. Step 4: Simplify right side
    440,965.28x = 173,661,810,134.94
  5. Step 5: Solve for x
    x = 173,661,810,134.94/440,965.28
  6. Step 6: Final answer
    x = 393,821.96

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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.