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Finding the Fourth Proportional to 407,593.73, 611,496.30 and 154,878.59

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Solution

The fourth proportional to 407,593.73, 611,496.30 and 154,878.59 is: 232,358.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,593.73 : 611,496.30 = 154,878.59 : x
  2. Step 2: Convert to fraction form
    407,593.73/611,496.30 = 154,878.59/x
  3. Step 3: Cross multiply
    407,593.73x = 611,496.30 × 154,878.59
  4. Step 4: Simplify right side
    407,593.73x = 94,707,681,676.74
  5. Step 5: Solve for x
    x = 94,707,681,676.74/407,593.73
  6. Step 6: Final answer
    x = 232,358.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.