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Finding the Fourth Proportional to 331,658.50, 457,701.08 and 188,442.80

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Solution

The fourth proportional to 331,658.50, 457,701.08 and 188,442.80 is: 260,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,658.50 : 457,701.08 = 188,442.80 : x
  2. Step 2: Convert to fraction form
    331,658.50/457,701.08 = 188,442.80/x
  3. Step 3: Cross multiply
    331,658.50x = 457,701.08 × 188,442.80
  4. Step 4: Simplify right side
    331,658.50x = 86,250,473,078.22
  5. Step 5: Solve for x
    x = 86,250,473,078.22/331,658.50
  6. Step 6: Final answer
    x = 260,058.08

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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.