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Finding the Fourth Proportional to 864,393.63, 1,296,593.56 and 265,354.82

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Solution

The fourth proportional to 864,393.63, 1,296,593.56 and 265,354.82 is: 398,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,393.63 : 1,296,593.56 = 265,354.82 : x
  2. Step 2: Convert to fraction form
    864,393.63/1,296,593.56 = 265,354.82/x
  3. Step 3: Cross multiply
    864,393.63x = 1,296,593.56 × 265,354.82
  4. Step 4: Simplify right side
    864,393.63x = 344,057,350,726.96
  5. Step 5: Solve for x
    x = 344,057,350,726.96/864,393.63
  6. Step 6: Final answer
    x = 398,033.19

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1.5x scale

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.