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Finding the Fourth Proportional to 543,212.25, 749,618.49 and 301,488.58

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Solution

The fourth proportional to 543,212.25, 749,618.49 and 301,488.58 is: 416,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,212.25 : 749,618.49 = 301,488.58 : x
  2. Step 2: Convert to fraction form
    543,212.25/749,618.49 = 301,488.58/x
  3. Step 3: Cross multiply
    543,212.25x = 749,618.49 × 301,488.58
  4. Step 4: Simplify right side
    543,212.25x = 226,001,414,091.84
  5. Step 5: Solve for x
    x = 226,001,414,091.84/543,212.25
  6. Step 6: Final answer
    x = 416,046.24

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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.