Home / 899,185.01-1,240,860.83-491,278.09

Finding the Fourth Proportional to 899,185.01, 1,240,860.83 and 491,278.09

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Solution

The fourth proportional to 899,185.01, 1,240,860.83 and 491,278.09 is: 677,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,185.01 : 1,240,860.83 = 491,278.09 : x
  2. Step 2: Convert to fraction form
    899,185.01/1,240,860.83 = 491,278.09/x
  3. Step 3: Cross multiply
    899,185.01x = 1,240,860.83 × 491,278.09
  4. Step 4: Simplify right side
    899,185.01x = 609,607,738,518.22
  5. Step 5: Solve for x
    x = 609,607,738,518.22/899,185.01
  6. Step 6: Final answer
    x = 677,955.85

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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.