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Finding the Fourth Proportional to 577,358.10, 796,729.08 and 315,708.60

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Solution

The fourth proportional to 577,358.10, 796,729.08 and 315,708.60 is: 435,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,358.10 : 796,729.08 = 315,708.60 : x
  2. Step 2: Convert to fraction form
    577,358.10/796,729.08 = 315,708.60/x
  3. Step 3: Cross multiply
    577,358.10x = 796,729.08 × 315,708.60
  4. Step 4: Simplify right side
    577,358.10x = 251,534,222,426.09
  5. Step 5: Solve for x
    x = 251,534,222,426.09/577,358.10
  6. Step 6: Final answer
    x = 435,664.14

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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.