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Finding the Fourth Proportional to 297,971.55, 411,107.72 and 170,623.71

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Solution

The fourth proportional to 297,971.55, 411,107.72 and 170,623.71 is: 235,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,971.55 : 411,107.72 = 170,623.71 : x
  2. Step 2: Convert to fraction form
    297,971.55/411,107.72 = 170,623.71/x
  3. Step 3: Cross multiply
    297,971.55x = 411,107.72 × 170,623.71
  4. Step 4: Simplify right side
    297,971.55x = 70,144,723,542.92
  5. Step 5: Solve for x
    x = 70,144,723,542.92/297,971.55
  6. Step 6: Final answer
    x = 235,407.45

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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.