Home / 691,197.51-1,036,640.74-247,965.51

Finding the Fourth Proportional to 691,197.51, 1,036,640.74 and 247,965.51

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Solution

The fourth proportional to 691,197.51, 1,036,640.74 and 247,965.51 is: 371,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,197.51 : 1,036,640.74 = 247,965.51 : x
  2. Step 2: Convert to fraction form
    691,197.51/1,036,640.74 = 247,965.51/x
  3. Step 3: Cross multiply
    691,197.51x = 1,036,640.74 × 247,965.51
  4. Step 4: Simplify right side
    691,197.51x = 257,051,149,780.88
  5. Step 5: Solve for x
    x = 257,051,149,780.88/691,197.51
  6. Step 6: Final answer
    x = 371,892.47

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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.