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Finding the Fourth Proportional to 577,364.12, 796,737.36 and 315,714.60

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Solution

The fourth proportional to 577,364.12, 796,737.36 and 315,714.60 is: 435,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,364.12 : 796,737.36 = 315,714.60 : x
  2. Step 2: Convert to fraction form
    577,364.12/796,737.36 = 315,714.60/x
  3. Step 3: Cross multiply
    577,364.12x = 796,737.36 × 315,714.60
  4. Step 4: Simplify right side
    577,364.12x = 251,541,616,917.46
  5. Step 5: Solve for x
    x = 251,541,616,917.46/577,364.12
  6. Step 6: Final answer
    x = 435,672.41

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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.