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Finding the Fourth Proportional to 339,366.80, 509,050.20 and 173,133.20

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Solution

The fourth proportional to 339,366.80, 509,050.20 and 173,133.20 is: 259,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,366.80 : 509,050.20 = 173,133.20 : x
  2. Step 2: Convert to fraction form
    339,366.80/509,050.20 = 173,133.20/x
  3. Step 3: Cross multiply
    339,366.80x = 509,050.20 × 173,133.20
  4. Step 4: Simplify right side
    339,366.80x = 88,133,490,086.64
  5. Step 5: Solve for x
    x = 88,133,490,086.64/339,366.80
  6. Step 6: Final answer
    x = 259,699.80

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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.