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Finding the Fourth Proportional to 482,870.80, 724,392.60 and 202,416.40

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Solution

The fourth proportional to 482,870.80, 724,392.60 and 202,416.40 is: 303,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,870.80 : 724,392.60 = 202,416.40 : x
  2. Step 2: Convert to fraction form
    482,870.80/724,392.60 = 202,416.40/x
  3. Step 3: Cross multiply
    482,870.80x = 724,392.60 × 202,416.40
  4. Step 4: Simplify right side
    482,870.80x = 146,628,942,278.64
  5. Step 5: Solve for x
    x = 146,628,942,278.64/482,870.80
  6. Step 6: Final answer
    x = 303,660.82

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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.