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Finding the Fourth Proportional to 431,391.20, 595,364.36 and 259,365.42

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Solution

The fourth proportional to 431,391.20, 595,364.36 and 259,365.42 is: 357,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,391.20 : 595,364.36 = 259,365.42 : x
  2. Step 2: Convert to fraction form
    431,391.20/595,364.36 = 259,365.42/x
  3. Step 3: Cross multiply
    431,391.20x = 595,364.36 × 259,365.42
  4. Step 4: Simplify right side
    431,391.20x = 154,416,927,284.43
  5. Step 5: Solve for x
    x = 154,416,927,284.43/431,391.20
  6. Step 6: Final answer
    x = 357,951.04

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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.