Home / 376,420.29-519,460.89-206,665.35

Finding the Fourth Proportional to 376,420.29, 519,460.89 and 206,665.35

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Solution

The fourth proportional to 376,420.29, 519,460.89 and 206,665.35 is: 285,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,420.29 : 519,460.89 = 206,665.35 : x
  2. Step 2: Convert to fraction form
    376,420.29/519,460.89 = 206,665.35/x
  3. Step 3: Cross multiply
    376,420.29x = 519,460.89 × 206,665.35
  4. Step 4: Simplify right side
    376,420.29x = 107,354,566,643.16
  5. Step 5: Solve for x
    x = 107,354,566,643.16/376,420.29
  6. Step 6: Final answer
    x = 285,198.67

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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.