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Finding the Fourth Proportional to 554,414.40, 831,621.60 and 365,457.60

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Solution

The fourth proportional to 554,414.40, 831,621.60 and 365,457.60 is: 548,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,414.40 : 831,621.60 = 365,457.60 : x
  2. Step 2: Convert to fraction form
    554,414.40/831,621.60 = 365,457.60/x
  3. Step 3: Cross multiply
    554,414.40x = 831,621.60 × 365,457.60
  4. Step 4: Simplify right side
    554,414.40x = 303,922,434,044.16
  5. Step 5: Solve for x
    x = 303,922,434,044.16/554,414.40
  6. Step 6: Final answer
    x = 548,186.40

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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.