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Finding the Fourth Proportional to 610,368.26, 842,308.61 and 338,439.51

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Solution

The fourth proportional to 610,368.26, 842,308.61 and 338,439.51 is: 467,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,368.26 : 842,308.61 = 338,439.51 : x
  2. Step 2: Convert to fraction form
    610,368.26/842,308.61 = 338,439.51/x
  3. Step 3: Cross multiply
    610,368.26x = 842,308.61 × 338,439.51
  4. Step 4: Simplify right side
    610,368.26x = 285,070,511,544.98
  5. Step 5: Solve for x
    x = 285,070,511,544.98/610,368.26
  6. Step 6: Final answer
    x = 467,046.75

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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.