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Finding the Fourth Proportional to 613,950.40, 921,024.01 and 259,016.70

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Solution

The fourth proportional to 613,950.40, 921,024.01 and 259,016.70 is: 388,566.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,950.40 : 921,024.01 = 259,016.70 : x
  2. Step 2: Convert to fraction form
    613,950.40/921,024.01 = 259,016.70/x
  3. Step 3: Cross multiply
    613,950.40x = 921,024.01 × 259,016.70
  4. Step 4: Simplify right side
    613,950.40x = 238,560,599,690.97
  5. Step 5: Solve for x
    x = 238,560,599,690.97/613,950.40
  6. Step 6: Final answer
    x = 388,566.57

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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.