Home / 285,179.04-393,520.28-170,434.71

Finding the Fourth Proportional to 285,179.04, 393,520.28 and 170,434.71

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Solution

The fourth proportional to 285,179.04, 393,520.28 and 170,434.71 is: 235,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,179.04 : 393,520.28 = 170,434.71 : x
  2. Step 2: Convert to fraction form
    285,179.04/393,520.28 = 170,434.71/x
  3. Step 3: Cross multiply
    285,179.04x = 393,520.28 × 170,434.71
  4. Step 4: Simplify right side
    285,179.04x = 67,069,513,948.75
  5. Step 5: Solve for x
    x = 67,069,513,948.75/285,179.04
  6. Step 6: Final answer
    x = 235,183.88

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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.