Home / 445,508.30-614,577.07-318,257.71

Finding the Fourth Proportional to 445,508.30, 614,577.07 and 318,257.71

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Solution

The fourth proportional to 445,508.30, 614,577.07 and 318,257.71 is: 439,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,508.30 : 614,577.07 = 318,257.71 : x
  2. Step 2: Convert to fraction form
    445,508.30/614,577.07 = 318,257.71/x
  3. Step 3: Cross multiply
    445,508.30x = 614,577.07 × 318,257.71
  4. Step 4: Simplify right side
    445,508.30x = 195,593,889,778.09
  5. Step 5: Solve for x
    x = 195,593,889,778.09/445,508.30
  6. Step 6: Final answer
    x = 439,035.34

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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.