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Finding the Fourth Proportional to 539,685.06, 744,760.62 and 297,962.51

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Solution

The fourth proportional to 539,685.06, 744,760.62 and 297,962.51 is: 411,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,685.06 : 744,760.62 = 297,962.51 : x
  2. Step 2: Convert to fraction form
    539,685.06/744,760.62 = 297,962.51/x
  3. Step 3: Cross multiply
    539,685.06x = 744,760.62 × 297,962.51
  4. Step 4: Simplify right side
    539,685.06x = 221,910,739,960.55
  5. Step 5: Solve for x
    x = 221,910,739,960.55/539,685.06
  6. Step 6: Final answer
    x = 411,185.63

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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.