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Finding the Fourth Proportional to 498,331.77, 687,616.74 and 294,354.39

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Solution

The fourth proportional to 498,331.77, 687,616.74 and 294,354.39 is: 406,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,331.77 : 687,616.74 = 294,354.39 : x
  2. Step 2: Convert to fraction form
    498,331.77/687,616.74 = 294,354.39/x
  3. Step 3: Cross multiply
    498,331.77x = 687,616.74 × 294,354.39
  4. Step 4: Simplify right side
    498,331.77x = 202,403,006,056.49
  5. Step 5: Solve for x
    x = 202,403,006,056.49/498,331.77
  6. Step 6: Final answer
    x = 406,161.15

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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.