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Finding the Fourth Proportional to 864,662.22, 1,297,040.54 and 359,274.30

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Solution

The fourth proportional to 864,662.22, 1,297,040.54 and 359,274.30 is: 538,931.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,662.22 : 1,297,040.54 = 359,274.30 : x
  2. Step 2: Convert to fraction form
    864,662.22/1,297,040.54 = 359,274.30/x
  3. Step 3: Cross multiply
    864,662.22x = 1,297,040.54 × 359,274.30
  4. Step 4: Simplify right side
    864,662.22x = 465,993,332,080.12
  5. Step 5: Solve for x
    x = 465,993,332,080.12/864,662.22
  6. Step 6: Final answer
    x = 538,931.07

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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.