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Finding the Fourth Proportional to 539,620.56, 744,677.62 and 297,903.30

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Solution

The fourth proportional to 539,620.56, 744,677.62 and 297,903.30 is: 411,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,620.56 : 744,677.62 = 297,903.30 : x
  2. Step 2: Convert to fraction form
    539,620.56/744,677.62 = 297,903.30/x
  3. Step 3: Cross multiply
    539,620.56x = 744,677.62 × 297,903.30
  4. Step 4: Simplify right side
    539,620.56x = 221,841,920,434.15
  5. Step 5: Solve for x
    x = 221,841,920,434.15/539,620.56
  6. Step 6: Final answer
    x = 411,107.24

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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.