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Finding the Fourth Proportional to 572,618.60, 858,709.20 and 173,126.60

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Solution

The fourth proportional to 572,618.60, 858,709.20 and 173,126.60 is: 259,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,618.60 : 858,709.20 = 173,126.60 : x
  2. Step 2: Convert to fraction form
    572,618.60/858,709.20 = 173,126.60/x
  3. Step 3: Cross multiply
    572,618.60x = 858,709.20 × 173,126.60
  4. Step 4: Simplify right side
    572,618.60x = 148,665,404,184.72
  5. Step 5: Solve for x
    x = 148,665,404,184.72/572,618.60
  6. Step 6: Final answer
    x = 259,623.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.