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Finding the Fourth Proportional to 534,465.50, 737,540.79 and 319,724.24

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Solution

The fourth proportional to 534,465.50, 737,540.79 and 319,724.24 is: 441,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,465.50 : 737,540.79 = 319,724.24 : x
  2. Step 2: Convert to fraction form
    534,465.50/737,540.79 = 319,724.24/x
  3. Step 3: Cross multiply
    534,465.50x = 737,540.79 × 319,724.24
  4. Step 4: Simplify right side
    534,465.50x = 235,809,668,551.75
  5. Step 5: Solve for x
    x = 235,809,668,551.75/534,465.50
  6. Step 6: Final answer
    x = 441,206.53

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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.