Home / 521,233.20-719,379-330,264.36

Finding the Fourth Proportional to 521,233.20, 719,379 and 330,264.36

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Solution

The fourth proportional to 521,233.20, 719,379 and 330,264.36 is: 455,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,233.20 : 719,379 = 330,264.36 : x
  2. Step 2: Convert to fraction form
    521,233.20/719,379 = 330,264.36/x
  3. Step 3: Cross multiply
    521,233.20x = 719,379 × 330,264.36
  4. Step 4: Simplify right side
    521,233.20x = 237,585,245,032.44
  5. Step 5: Solve for x
    x = 237,585,245,032.44/521,233.20
  6. Step 6: Final answer
    x = 455,813.72

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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.