Home / 920,196-1,380,515.52-289,109.58

Finding the Fourth Proportional to 920,196, 1,380,515.52 and 289,109.58

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Solution

The fourth proportional to 920,196, 1,380,515.52 and 289,109.58 is: 433,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,196 : 1,380,515.52 = 289,109.58 : x
  2. Step 2: Convert to fraction form
    920,196/1,380,515.52 = 289,109.58/x
  3. Step 3: Cross multiply
    920,196x = 1,380,515.52 × 289,109.58
  4. Step 4: Simplify right side
    920,196x = 399,120,262,170.68
  5. Step 5: Solve for x
    x = 399,120,262,170.68/920,196
  6. Step 6: Final answer
    x = 433,733.97

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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.