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Finding the Fourth Proportional to 577,355.10, 796,724.94 and 315,705.60

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Solution

The fourth proportional to 577,355.10, 796,724.94 and 315,705.60 is: 435,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,355.10 : 796,724.94 = 315,705.60 : x
  2. Step 2: Convert to fraction form
    577,355.10/796,724.94 = 315,705.60/x
  3. Step 3: Cross multiply
    577,355.10x = 796,724.94 × 315,705.60
  4. Step 4: Simplify right side
    577,355.10x = 251,530,525,217.66
  5. Step 5: Solve for x
    x = 251,530,525,217.66/577,355.10
  6. Step 6: Final answer
    x = 435,660.00

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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.