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Finding the Fourth Proportional to 539,716.21, 744,809.46 and 297,999.25

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Solution

The fourth proportional to 539,716.21, 744,809.46 and 297,999.25 is: 411,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,716.21 : 744,809.46 = 297,999.25 : x
  2. Step 2: Convert to fraction form
    539,716.21/744,809.46 = 297,999.25/x
  3. Step 3: Cross multiply
    539,716.21x = 744,809.46 × 297,999.25
  4. Step 4: Simplify right side
    539,716.21x = 221,952,660,472.91
  5. Step 5: Solve for x
    x = 221,952,660,472.91/539,716.21
  6. Step 6: Final answer
    x = 411,239.57

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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.