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Finding the Fourth Proportional to 476,801.53, 657,986.37 and 261,955.43

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Solution

The fourth proportional to 476,801.53, 657,986.37 and 261,955.43 is: 361,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,801.53 : 657,986.37 = 261,955.43 : x
  2. Step 2: Convert to fraction form
    476,801.53/657,986.37 = 261,955.43/x
  3. Step 3: Cross multiply
    476,801.53x = 657,986.37 × 261,955.43
  4. Step 4: Simplify right side
    476,801.53x = 172,363,102,487.49
  5. Step 5: Solve for x
    x = 172,363,102,487.49/476,801.53
  6. Step 6: Final answer
    x = 361,498.64

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1.5x scale

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.