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Finding the Fourth Proportional to 352,648.95, 486,987.69 and 245,511.93

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Solution

The fourth proportional to 352,648.95, 486,987.69 and 245,511.93 is: 339,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,648.95 : 486,987.69 = 245,511.93 : x
  2. Step 2: Convert to fraction form
    352,648.95/486,987.69 = 245,511.93/x
  3. Step 3: Cross multiply
    352,648.95x = 486,987.69 × 245,511.93
  4. Step 4: Simplify right side
    352,648.95x = 119,561,283,995.64
  5. Step 5: Solve for x
    x = 119,561,283,995.64/352,648.95
  6. Step 6: Final answer
    x = 339,037.69

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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.