Home / 898,992.45-1,240,647.21-517,019.49

Finding the Fourth Proportional to 898,992.45, 1,240,647.21 and 517,019.49

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Solution

The fourth proportional to 898,992.45, 1,240,647.21 and 517,019.49 is: 713,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,992.45 : 1,240,647.21 = 517,019.49 : x
  2. Step 2: Convert to fraction form
    898,992.45/1,240,647.21 = 517,019.49/x
  3. Step 3: Cross multiply
    898,992.45x = 1,240,647.21 × 517,019.49
  4. Step 4: Simplify right side
    898,992.45x = 641,438,787,784.12
  5. Step 5: Solve for x
    x = 641,438,787,784.12/898,992.45
  6. Step 6: Final answer
    x = 713,508.54

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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.