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Finding the Fourth Proportional to 461,062.50, 636,285.69 and 259,858.50

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Solution

The fourth proportional to 461,062.50, 636,285.69 and 259,858.50 is: 358,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,062.50 : 636,285.69 = 259,858.50 : x
  2. Step 2: Convert to fraction form
    461,062.50/636,285.69 = 259,858.50/x
  3. Step 3: Cross multiply
    461,062.50x = 636,285.69 × 259,858.50
  4. Step 4: Simplify right side
    461,062.50x = 165,344,244,974.87
  5. Step 5: Solve for x
    x = 165,344,244,974.87/461,062.50
  6. Step 6: Final answer
    x = 358,615.69

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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.