Home / 899,191.58-1,240,869.69-491,284.62

Finding the Fourth Proportional to 899,191.58, 1,240,869.69 and 491,284.62

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Solution

The fourth proportional to 899,191.58, 1,240,869.69 and 491,284.62 is: 677,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,191.58 : 1,240,869.69 = 491,284.62 : x
  2. Step 2: Convert to fraction form
    899,191.58/1,240,869.69 = 491,284.62/x
  3. Step 3: Cross multiply
    899,191.58x = 1,240,869.69 × 491,284.62
  4. Step 4: Simplify right side
    899,191.58x = 609,620,194,121.17
  5. Step 5: Solve for x
    x = 609,620,194,121.17/899,191.58
  6. Step 6: Final answer
    x = 677,964.75

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Double scale
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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.