Home / 413,981.72-621,213.58-174,078.28

Finding the Fourth Proportional to 413,981.72, 621,213.58 and 174,078.28

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Solution

The fourth proportional to 413,981.72, 621,213.58 and 174,078.28 is: 261,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,981.72 : 621,213.58 = 174,078.28 : x
  2. Step 2: Convert to fraction form
    413,981.72/621,213.58 = 174,078.28/x
  3. Step 3: Cross multiply
    413,981.72x = 621,213.58 × 174,078.28
  4. Step 4: Simplify right side
    413,981.72x = 108,139,791,519.04
  5. Step 5: Solve for x
    x = 108,139,791,519.04/413,981.72
  6. Step 6: Final answer
    x = 261,218.76

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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.