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Finding the Fourth Proportional to 461,061.75, 636,284.66 and 259,857.75

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Solution

The fourth proportional to 461,061.75, 636,284.66 and 259,857.75 is: 358,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,061.75 : 636,284.66 = 259,857.75 : x
  2. Step 2: Convert to fraction form
    461,061.75/636,284.66 = 259,857.75/x
  3. Step 3: Cross multiply
    461,061.75x = 636,284.66 × 259,857.75
  4. Step 4: Simplify right side
    461,061.75x = 165,343,498,807.83
  5. Step 5: Solve for x
    x = 165,343,498,807.83/461,061.75
  6. Step 6: Final answer
    x = 358,614.65

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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.