Home / 410,828.20-617,279.10-261,140.20

Finding the Fourth Proportional to 410,828.20, 617,279.10 and 261,140.20

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Solution

The fourth proportional to 410,828.20, 617,279.10 and 261,140.20 is: 392,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,828.20 : 617,279.10 = 261,140.20 : x
  2. Step 2: Convert to fraction form
    410,828.20/617,279.10 = 261,140.20/x
  3. Step 3: Cross multiply
    410,828.20x = 617,279.10 × 261,140.20
  4. Step 4: Simplify right side
    410,828.20x = 161,196,387,629.82
  5. Step 5: Solve for x
    x = 161,196,387,629.82/410,828.20
  6. Step 6: Final answer
    x = 392,369.33

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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.