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Finding the Fourth Proportional to 291,706.16, 402,591.16 and 170,893.55

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Solution

The fourth proportional to 291,706.16, 402,591.16 and 170,893.55 is: 235,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,706.16 : 402,591.16 = 170,893.55 : x
  2. Step 2: Convert to fraction form
    291,706.16/402,591.16 = 170,893.55/x
  3. Step 3: Cross multiply
    291,706.16x = 402,591.16 × 170,893.55
  4. Step 4: Simplify right side
    291,706.16x = 68,800,231,486.54
  5. Step 5: Solve for x
    x = 68,800,231,486.54/291,706.16
  6. Step 6: Final answer
    x = 235,854.57

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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.