Home / 899,182.89-1,240,857.91-491,275.97

Finding the Fourth Proportional to 899,182.89, 1,240,857.91 and 491,275.97

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Solution

The fourth proportional to 899,182.89, 1,240,857.91 and 491,275.97 is: 677,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,182.89 : 1,240,857.91 = 491,275.97 : x
  2. Step 2: Convert to fraction form
    899,182.89/1,240,857.91 = 491,275.97/x
  3. Step 3: Cross multiply
    899,182.89x = 1,240,857.91 × 491,275.97
  4. Step 4: Simplify right side
    899,182.89x = 609,603,673,367.42
  5. Step 5: Solve for x
    x = 609,603,673,367.42/899,182.89
  6. Step 6: Final answer
    x = 677,952.93

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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.