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Finding the Fourth Proportional to 539,513.55, 744,546.74 and 294,512.85

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Solution

The fourth proportional to 539,513.55, 744,546.74 and 294,512.85 is: 406,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,513.55 : 744,546.74 = 294,512.85 : x
  2. Step 2: Convert to fraction form
    539,513.55/744,546.74 = 294,512.85/x
  3. Step 3: Cross multiply
    539,513.55x = 744,546.74 × 294,512.85
  4. Step 4: Simplify right side
    539,513.55x = 219,278,580,883.05
  5. Step 5: Solve for x
    x = 219,278,580,883.05/539,513.55
  6. Step 6: Final answer
    x = 406,437.58

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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.