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Finding the Fourth Proportional to 539,608.20, 744,660.40 and 297,891.10

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Solution

The fourth proportional to 539,608.20, 744,660.40 and 297,891.10 is: 411,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,608.20 : 744,660.40 = 297,891.10 : x
  2. Step 2: Convert to fraction form
    539,608.20/744,660.40 = 297,891.10/x
  3. Step 3: Cross multiply
    539,608.20x = 744,660.40 × 297,891.10
  4. Step 4: Simplify right side
    539,608.20x = 221,827,705,682.44
  5. Step 5: Solve for x
    x = 221,827,705,682.44/539,608.20
  6. Step 6: Final answer
    x = 411,090.32

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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.