Home / 865,425.88-1,298,138.82-234,339.58

Finding the Fourth Proportional to 865,425.88, 1,298,138.82 and 234,339.58

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Solution

The fourth proportional to 865,425.88, 1,298,138.82 and 234,339.58 is: 351,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,425.88 : 1,298,138.82 = 234,339.58 : x
  2. Step 2: Convert to fraction form
    865,425.88/1,298,138.82 = 234,339.58/x
  3. Step 3: Cross multiply
    865,425.88x = 1,298,138.82 × 234,339.58
  4. Step 4: Simplify right side
    865,425.88x = 304,205,305,860.50
  5. Step 5: Solve for x
    x = 304,205,305,860.50/865,425.88
  6. Step 6: Final answer
    x = 351,509.37

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.