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Finding the Fourth Proportional to 539,601.78, 744,656.48 and 297,884.47

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Solution

The fourth proportional to 539,601.78, 744,656.48 and 297,884.47 is: 411,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,601.78 : 744,656.48 = 297,884.47 : x
  2. Step 2: Convert to fraction form
    539,601.78/744,656.48 = 297,884.47/x
  3. Step 3: Cross multiply
    539,601.78x = 744,656.48 × 297,884.47
  4. Step 4: Simplify right side
    539,601.78x = 221,821,599,387.44
  5. Step 5: Solve for x
    x = 221,821,599,387.44/539,601.78
  6. Step 6: Final answer
    x = 411,083.89

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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.