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Finding the Fourth Proportional to 539,286.98, 744,215.46 and 297,569.48

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Solution

The fourth proportional to 539,286.98, 744,215.46 and 297,569.48 is: 410,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,286.98 : 744,215.46 = 297,569.48 : x
  2. Step 2: Convert to fraction form
    539,286.98/744,215.46 = 297,569.48/x
  3. Step 3: Cross multiply
    539,286.98x = 744,215.46 × 297,569.48
  4. Step 4: Simplify right side
    539,286.98x = 221,455,807,440.16
  5. Step 5: Solve for x
    x = 221,455,807,440.16/539,286.98
  6. Step 6: Final answer
    x = 410,645.57

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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.