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Finding the Fourth Proportional to 539,221.23, 744,090.75 and 297,503.78

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Solution

The fourth proportional to 539,221.23, 744,090.75 and 297,503.78 is: 410,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,221.23 : 744,090.75 = 297,503.78 : x
  2. Step 2: Convert to fraction form
    539,221.23/744,090.75 = 297,503.78/x
  3. Step 3: Cross multiply
    539,221.23x = 744,090.75 × 297,503.78
  4. Step 4: Simplify right side
    539,221.23x = 221,369,807,067.58
  5. Step 5: Solve for x
    x = 221,369,807,067.58/539,221.23
  6. Step 6: Final answer
    x = 410,536.15

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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.