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Finding the Fourth Proportional to 476,658.09, 657,793.58 and 261,803.16

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Solution

The fourth proportional to 476,658.09, 657,793.58 and 261,803.16 is: 361,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,658.09 : 657,793.58 = 261,803.16 : x
  2. Step 2: Convert to fraction form
    476,658.09/657,793.58 = 261,803.16/x
  3. Step 3: Cross multiply
    476,658.09x = 657,793.58 × 261,803.16
  4. Step 4: Simplify right side
    476,658.09x = 172,212,436,562.70
  5. Step 5: Solve for x
    x = 172,212,436,562.70/476,658.09
  6. Step 6: Final answer
    x = 361,291.33

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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.