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Finding the Fourth Proportional to 291,605.27, 402,423.80 and 170,735.24

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Solution

The fourth proportional to 291,605.27, 402,423.80 and 170,735.24 is: 235,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,605.27 : 402,423.80 = 170,735.24 : x
  2. Step 2: Convert to fraction form
    291,605.27/402,423.80 = 170,735.24/x
  3. Step 3: Cross multiply
    291,605.27x = 402,423.80 × 170,735.24
  4. Step 4: Simplify right side
    291,605.27x = 68,707,924,227.10
  5. Step 5: Solve for x
    x = 68,707,924,227.10/291,605.27
  6. Step 6: Final answer
    x = 235,619.63

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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.