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Finding the Fourth Proportional to 421,925.69, 582,258.15 and 230,951.18

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Solution

The fourth proportional to 421,925.69, 582,258.15 and 230,951.18 is: 318,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,925.69 : 582,258.15 = 230,951.18 : x
  2. Step 2: Convert to fraction form
    421,925.69/582,258.15 = 230,951.18/x
  3. Step 3: Cross multiply
    421,925.69x = 582,258.15 × 230,951.18
  4. Step 4: Simplify right side
    421,925.69x = 134,473,203,895.83
  5. Step 5: Solve for x
    x = 134,473,203,895.83/421,925.69
  6. Step 6: Final answer
    x = 318,713.01

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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.