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Finding the Fourth Proportional to 379,319.92, 523,565.64 and 235,994.48

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Solution

The fourth proportional to 379,319.92, 523,565.64 and 235,994.48 is: 325,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,319.92 : 523,565.64 = 235,994.48 : x
  2. Step 2: Convert to fraction form
    379,319.92/523,565.64 = 235,994.48/x
  3. Step 3: Cross multiply
    379,319.92x = 523,565.64 × 235,994.48
  4. Step 4: Simplify right side
    379,319.92x = 123,558,600,957.67
  5. Step 5: Solve for x
    x = 123,558,600,957.67/379,319.92
  6. Step 6: Final answer
    x = 325,737.18

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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.