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Finding the Fourth Proportional to 668,246.28, 921,287.72 and 530,880.96

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Solution

The fourth proportional to 668,246.28, 921,287.72 and 530,880.96 is: 731,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,246.28 : 921,287.72 = 530,880.96 : x
  2. Step 2: Convert to fraction form
    668,246.28/921,287.72 = 530,880.96/x
  3. Step 3: Cross multiply
    668,246.28x = 921,287.72 × 530,880.96
  4. Step 4: Simplify right side
    668,246.28x = 489,094,109,229.81
  5. Step 5: Solve for x
    x = 489,094,109,229.81/668,246.28
  6. Step 6: Final answer
    x = 731,906.97

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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.