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Finding the Fourth Proportional to 492,685.60, 738,153.60 and 461,192.80

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Solution

The fourth proportional to 492,685.60, 738,153.60 and 461,192.80 is: 690,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,685.60 : 738,153.60 = 461,192.80 : x
  2. Step 2: Convert to fraction form
    492,685.60/738,153.60 = 461,192.80/x
  3. Step 3: Cross multiply
    492,685.60x = 738,153.60 × 461,192.80
  4. Step 4: Simplify right side
    492,685.60x = 340,431,125,614.08
  5. Step 5: Solve for x
    x = 340,431,125,614.08/492,685.60
  6. Step 6: Final answer
    x = 690,970.32

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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.