Home / 762,171.12-1,143,257.09-193,594.86

Finding the Fourth Proportional to 762,171.12, 1,143,257.09 and 193,594.86

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Solution

The fourth proportional to 762,171.12, 1,143,257.09 and 193,594.86 is: 290,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,171.12 : 1,143,257.09 = 193,594.86 : x
  2. Step 2: Convert to fraction form
    762,171.12/1,143,257.09 = 193,594.86/x
  3. Step 3: Cross multiply
    762,171.12x = 1,143,257.09 × 193,594.86
  4. Step 4: Simplify right side
    762,171.12x = 221,328,695,314.58
  5. Step 5: Solve for x
    x = 221,328,695,314.58/762,171.12
  6. Step 6: Final answer
    x = 290,392.39

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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.