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Finding the Fourth Proportional to 461,187, 636,438.08 and 259,983

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Solution

The fourth proportional to 461,187, 636,438.08 and 259,983 is: 358,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,187 : 636,438.08 = 259,983 : x
  2. Step 2: Convert to fraction form
    461,187/636,438.08 = 259,983/x
  3. Step 3: Cross multiply
    461,187x = 636,438.08 × 259,983
  4. Step 4: Simplify right side
    461,187x = 165,463,080,052.73
  5. Step 5: Solve for x
    x = 165,463,080,052.73/461,187
  6. Step 6: Final answer
    x = 358,776.55

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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.