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Finding the Fourth Proportional to 534,330.50, 737,370.56 and 289,311.06

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Solution

The fourth proportional to 534,330.50, 737,370.56 and 289,311.06 is: 399,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,330.50 : 737,370.56 = 289,311.06 : x
  2. Step 2: Convert to fraction form
    534,330.50/737,370.56 = 289,311.06/x
  3. Step 3: Cross multiply
    534,330.50x = 737,370.56 × 289,311.06
  4. Step 4: Simplify right side
    534,330.50x = 213,329,456,039.73
  5. Step 5: Solve for x
    x = 213,329,456,039.73/534,330.50
  6. Step 6: Final answer
    x = 399,246.26

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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.