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Finding the Fourth Proportional to 476,254.64, 657,230.92 and 261,395.28

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Solution

The fourth proportional to 476,254.64, 657,230.92 and 261,395.28 is: 360,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,254.64 : 657,230.92 = 261,395.28 : x
  2. Step 2: Convert to fraction form
    476,254.64/657,230.92 = 261,395.28/x
  3. Step 3: Cross multiply
    476,254.64x = 657,230.92 × 261,395.28
  4. Step 4: Simplify right side
    476,254.64x = 171,797,060,358.06
  5. Step 5: Solve for x
    x = 171,797,060,358.06/476,254.64
  6. Step 6: Final answer
    x = 360,725.22

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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.