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Finding the Fourth Proportional to 291,354.56, 402,069.24 and 170,518.89

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Solution

The fourth proportional to 291,354.56, 402,069.24 and 170,518.89 is: 235,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,354.56 : 402,069.24 = 170,518.89 : x
  2. Step 2: Convert to fraction form
    291,354.56/402,069.24 = 170,518.89/x
  3. Step 3: Cross multiply
    291,354.56x = 402,069.24 × 170,518.89
  4. Step 4: Simplify right side
    291,354.56x = 68,560,400,507.94
  5. Step 5: Solve for x
    x = 68,560,400,507.94/291,354.56
  6. Step 6: Final answer
    x = 235,316.04

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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.