Home / 285,173.84-393,512.96-170,429.66

Finding the Fourth Proportional to 285,173.84, 393,512.96 and 170,429.66

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Solution

The fourth proportional to 285,173.84, 393,512.96 and 170,429.66 is: 235,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,173.84 : 393,512.96 = 170,429.66 : x
  2. Step 2: Convert to fraction form
    285,173.84/393,512.96 = 170,429.66/x
  3. Step 3: Cross multiply
    285,173.84x = 393,512.96 × 170,429.66
  4. Step 4: Simplify right side
    285,173.84x = 67,066,279,978.39
  5. Step 5: Solve for x
    x = 67,066,279,978.39/285,173.84
  6. Step 6: Final answer
    x = 235,176.83

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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.