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Finding the Fourth Proportional to 609,004.40, 840,415.86 and 337,066.47

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Solution

The fourth proportional to 609,004.40, 840,415.86 and 337,066.47 is: 465,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,004.40 : 840,415.86 = 337,066.47 : x
  2. Step 2: Convert to fraction form
    609,004.40/840,415.86 = 337,066.47/x
  3. Step 3: Cross multiply
    609,004.40x = 840,415.86 × 337,066.47
  4. Step 4: Simplify right side
    609,004.40x = 283,276,007,262.21
  5. Step 5: Solve for x
    x = 283,276,007,262.21/609,004.40
  6. Step 6: Final answer
    x = 465,146.08

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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.